This Product is MADE IN THE USA! Photo of header reducers, gaskets and hardware included with Hedman Hedders Photo of Hedman's Black-Maxx Satin Black Ceramic-metallic header finish.

BLACK HEADERS For '71-91 GM 283-400 CLASS C MOTORHOMES With A.I.R.

Standard-Duty Black Ceramic-Coated, Long-Tube Headers For 1971-91 CHEVY/GMC Class C Conversion Vans/Motorhomes with 283-400 SB Chevy Engine With A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Long Tubes; 3 in. Ball/Socket Collector


Product Specifications

[PLEASE REVIEW THE FOLLOWING PRODUCT ATTRIBUTES & VEHICLE APPLICATION FOOTNOTES SPECIFIC TO YOUR VEHICLE, THOROUGHLY]

  • Tube Diameter 1-5/8 in.
  • Tube Style Long Tubes
  • Air Conditioning Yes
  • Automatic Transmission - Column Yes
  • Automatic Transmission - Floor Yes
  • Manual Transmission - Column Yes
  • Manual Transmission - Floor Yes
  • Collector Attachment 3 in.
  • Collector Diameter 3 in.
  • Collector Size 3 in.
  • Collector Style BALL and SOCKET Style (Gasketless)
  • Reducer Outlet Size 2-1/2 in.
  • Exhaust System Dia 2-1/2 in.
  • Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
  • E.O. # No
  • Emissions Notes Not currently legal for sale or use in California. Please call for status update
  • Finish BLACK MAXX Satin Black Ceramic-Metallic
  • Finish Type BLACK MAXX- Black Ceramic-Metallic Coating
  • Flange Style Standard
  • Flange Thickness 0.3125 in.
  • Header Port Shape Round
  • Header Style Long Tube
  • Notes 71-91 Chev. C-Class Motorhome, Van 283-400 w/A.I.R.
  • Port Shape Round
  • Power Steering Yes
  • Material Mild Steel
  • Tube Design Standard
  • Tube Length Long Tubes
  • Tube Material Thickness 16g
  • Tube Size 1-5/8 in.
  • Variations 69061, 66061
  • with A.I.R. System Yes
  • with EGR No
  • Weld-Up No
  • Tuned No
  • Bolts/Studs Included Yes
  • Catalytic Converter(s) Included No
  • Collector Bolts Included Yes
  • Crossover Pipe Included No
  • Gasket Or Seal Included Yes
  • Header Fasteners Included Yes
  • Installation Hardware Included Yes
  • Motor Mounts Included No
  • Mounting Hardware Included Yes
  • Reducers Included Yes
  • Y-Pipe Included No
  • Quantity Sold as a pair.
  • Primary Tube Gauge 16g
  • Primary Tube Diameter (in) 1.625 in.
  • Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
  • Header Material Mild Steel
  • Header Finish BLACK MAXX Satin Black Ceramic-Metallic
  • Cylinder Head Port Shape Round
  • Cylinder Head Stock Profile Heads
  • Header Construction MILD STEEL- Standard-Duty
  • Replacement Gasket 27500
  • Replacement Head Flange Gasket 27500
  • California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov
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