dimensions for 68500 series of Hedman Tight Tubes Street Rod Headers.

HTC Coated Hedders; 1-5/8" Tube Dia; 2-1/2" Coll; SHORTY Design

HTC Coated Hedders; 1-5/8" Tube Dia.; 2-1/2" Coll.; SHORTY Design

Product Specifications

(PLEASE REVIEW THE FOLLOWING PRODUCT SPECIFICATIONS & FOOTNOTES THOROUGHLY)

  • Tube Diameter 1-5/8"
  • Tube Style Tight Tubes
  • Collector Style 3-Bolt Gasket Style Flange
  • Air Conditioning Yes
  • Automatic Transmission - Column Yes
  • Automatic Transmission - Floor Yes
  • Manual Transmission - Column Yes
  • Manual Transmission - Floor Yes
  • Collector Attachment 3"
  • Collector Size 2-1/2"
  • Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
  • Emissions Notes NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only.
  • Engine Chevy SB 283-400
  • Exhaust System Dia 2-1/2"
  • Finish HTC Polished Silver Ceramic-Metallic
  • Flange Style Standard
  • FLANGE Thickness 0.3125"
  • Head Flange Gasket 27520
  • Header Port Shape Oval Port
  • Header Style TIGHT TUBES
  • Notes 55-57 Chevrolet Passenger Cars 283-400 Tight Tube
  • Port Shape Oval
  • Power Steering Yes
  • Material Mild Steel
  • Tube Design TIGHT TUBES
  • Tube Length TIGHT TUBES
  • Tube Material Thickness 16g
  • Tube Size 1-5/8"
  • Variations 68500
  • with A.I.R. System No
  • with EGR No
  • Weld-Up No
  • Reducer Outlet Size 2-1/2"
  • Tuned NO
  • Reducers Included Yes
  • Gasket Or Seal Included Yes
  • Bolts/Studs Included Yes
  • Installation Hardware Included Yes
  • Transmission Mount/Crossmember (Included) No
  • Motor Mounts (Included) NO
  • Mounting Hardware Included Yes
  • Collector Bolts Included Yes
  • Crossover Pipe Included NO
  • Y-Pipe Included No
  • Catalytic Converter(s) Included No
  • Quantity Sold as a pair.
  • Primary Tube Gauge 16g
  • Primary Tube Diameter (in) 1.625"
  • Package Contents Header(s), new bolts and gasket(s) to head, reducer(s) and hardware, instructions
  • Header Material Mild Steel
  • Header Finish HTC Polished Silver Ceramic-Metallic
  • Gasket # 27520
  • Cylinder Head Port Shape Oval
  • Cylinder Head Stock Profile Heads
  • California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov

Vehicle Applications

      YearSubmodelC.I.D.LiterCylinders
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      YearSubmodelC.I.D.LiterCylinders
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      YearSubmodelC.I.D.LiterCylinders
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.
      Engine FamilySB Chevy 283-400 (Gen 1)
      YearSubmodelC.I.D.LiterCylinders
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Footnotes(103) Will fit with angle plug heads (Chevy aluminum only, L98).
      Emissions NotesNOT LEGAL FOR STREET USE: Not applicable or intended for street or highway use on '75-later vehicles. Legal for racing only, and never used on a highway or public road.
      Engine FamilySB Chevy 283-400 (Gen 1)
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