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Hedman Hedders

Headers, Hedman, 1978-88 G-Body, SBC, 1-1/2", Full Length, w/A.I.R.

Vehicle Specific View fitment for 9 models
Part# HD68311
Mfg# 63311
Sold As Pair
$499.99
List Price: $550.95
You Save $50.96

Ships direct from manufacturer
Allow 2-6 weeks for item to arrive.
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The Hedman name has been synonymous with quality and performance at a fair price for over 50 years. Simply bolting on a set of these headers will increase both engine performance and efficiency. Original style headers are manufactured using heavy-gauge steel tubing and feature 1/4” thick flanges at the head and collector. Headers are available in a standard black or Hedman’s HTC coating, a ceramic-metallic formula that protects the headers from extreme temperatures and harsh road elements. These are the perfect choice for any classic street machine. Hedman’s Elite series headers are the top-of-the-line. Constructed with heavy 3/8” flanges and heavy-gauge tubing, these headers are built to withstand even the toughest conditions. All Elite series headers also feature Hedman’s HTC coating for additional protection and good looks.

1. Without smog injection or injection heads 4. Includes parts to retain emission devices (50 States) 5. With A.I.R. system 6. Modify stock exhaust to retain catalytic converter 15. Shorty Header/Maximum Ground Clearance 31. Must use non-shell motor mounts 45. Not legal for sale or use in California on pollution controlled motor vehicles 103. Will fit angle plug heads (Chevy aluminum only) 121. Must modify rotary AC bracket 234. Designed with additional clearance for use with close ratio steering box

Notes

  • This item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item exceeds standard size and is exempt from free shipping.
  • SHIP NOTE: This item is SPECIAL ORDER and will drop-ship from the manufacturer. While the majority of drop ship orders experience no delays, please be advised that OPGI does not control delivery times.
3
This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More

CARB EO Number: D-167-33 (pdf)

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  • 2024 GM G-Body 1978-1988 215
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1982 Buick Grand National  
1984–1987 Buick Grand National  
1978–1987 Buick Regal 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
1983–1987 Buick T-Type  
1978–1987 Chevrolet El Camino 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
1978–1983 Chevrolet Malibu 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
1978–1988 Chevrolet Monte Carlo 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
1978–1988 Oldsmobile Cutlass 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
1982–1986 Pontiac Bonneville 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
1978–1987 Pontiac Grand Prix 283-400/AC, Power Steering, Automatic, Manual (Floor Only), 1-1/2" Tubes, 3" Collector (4, 5, 6, 45, 121)
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