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

Standard Uncoated Hedders; 1-5/8" Tube Dia; 2-1/2" Coll; TIGHT TUBES Design

Standard Uncoated Hedders; 1-5/8" Tube Dia.; 2-1/2" Coll.; TIGHT TUBES 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 2-1/2"
  • 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 Uncoated
  • Flange Style Standard
  • FLANGE Thickness 0.3125"
  • Head Flange Gasket 27520
  • Header Port Shape Oval Port
  • Header Style TIGHT TUBES
  • Notes 55-57 Passenger Cars 283-400
  • 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 68506
  • 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 Uncoated
  • Gasket # 27520
  • Cylinder Head Port Shape Oval
  • Cylinder Head Stock Profile Heads
  • California Proposition 65 WARNING: Cancer. 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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