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 '76-LATER MODEL YEARS! Legal for off-road use only.
  • Engine Chevy SB 283-400 (Gen 1) 1958-86
  • 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

Vehicle Applications

      YearSubmodelC.I.D.LiterCylinders
      1955305
      1955400
      1955350
      1955327
      1955307
      1955265
      1955283
      1956283
      1956265
      1956400
      1956350
      1956327
      1956307
      1956305
      1957283
      1957265
      1957400
      1957350
      1957327
      1957307
      1957305
      YearSubmodelC.I.D.LiterCylinders
      1955307
      1955305
      1955265
      1955400
      1955350
      1955327
      1955283
      1956283
      1956265
      1956400
      1956350
      1956327
      1956307
      1956305
      1957283
      1957265
      1957400
      1957350
      1957327
      1957307
      1957305
      YearSubmodelC.I.D.LiterCylinders
      1955307
      1955305
      1955283
      1955265
      1955400
      1955350
      1955327
      1956327
      1956307
      1956305
      1956283
      1956265
      1956400
      1956350
      1957350
      1957327
      1957307
      1957305
      1957283
      1957265
      1957400
      YearSubmodelC.I.D.LiterCylinders
      1923400
      1923350
      1923305
      1923283
      1924400
      1924350
      1924305
      1924283
      1925400
      1925350
      1925305
      1925283
      1926400
      1926350
      1926305
      1926283
      1927400
      1927350
      1927305
      1927283
      1928283
      1928305
      1928350
      1928400
      1929400
      1929350
      1929305
      1929283
      1930350
      1930400
      1930305
      1930283
      1931350
      1931400
      1931283
      1931305
      1932283
      1932305
      1932350
      1932400
      1933350
      1933400
      1933283
      1933305
      1934283
      1934305
      1934350
      1934400
      1935350
      1935400
      1935283
      1935305
      1936283
      1936305
      1936350
      1936400
      1937350
      1937400
      1937283
      1937305
      1938283
      1938305
      1938350
      1938400
      1939350
      1939400
      1939283
      1939305
      1940283
      1940305
      1940350
      1940400
      1941350
      1941400
      1941283
      1941305
      1942283
      1942305
      1942350
      1942400
      1943350
      1943400
      1943283
      1943305
      1944283
      1944305
      1944350
      1944400
      1945350
      1945400
      1945283
      1945305
      1946283
      1946305
      1946350
      1946400
      1947350
      1947400
      1947283
      1947305
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