Hedman Long Tube Headers 1-5/8” HTC-Coated Ceramic 2WD/4WD 283-400 Small Block GM Truck 67-87

If you’re looking for a simple way to improve your 1967-1987 GM truck’s horsepower and torque, look no further: these Hedman 1-5/8” Long Tube Headers are perfect. Hand-welded for 283-400 Small Block engines, you can be sure that they’ll give you the performance boost you’re looking for. The headers’ long tube design relieves your manifold’s back pressure and provides an ample exhaust flow. Longevity is a priority, so they’re finished with a corrosion-resistant HTC polished silver ceramic-metallic coat that can endure up to 1400° F.

Features and Benefits:
- Heightens engine horsepower and torque
- Round cylinder head port shape
- Smooth-flowing 1-5/8” long tube design
- HTC-coated finish withstands high heat
- 3" Gasketless ball and socket collectors 
- Made from mild steel
- Mounting hardware included
- Made in the USA

Mounting hardware and gaskets are included with these headers, so there’s no need to buy them separately. For a painless installation, these headers feature gasketless ball and socket collectors, allowing you to bolt up your exhaust without a precise alignment with the collectors themselves.

Vehicle Fitment:
- 1967-1987 Chevy C10, C20, C30, K10, K20, K30
- 1967-1972 GMC C1500, C2500, K1500, K2500
- 1973-1980 GMC C15, C25, C35, K15, K25, K35
- 1981-1987 GMC C1500, C2500, C3500, K1500, K2500, K3500
*For C10s with 283-400 Small Block engines.
*Fits factory aluminum angle or straight plug heads (L98 profile only).
*Fits round exhaust ports.

Includes:
- Pair of headers
- Ball and socket reducers (exhaust adapters)
- Gaskets
- Mounting hardware

Additional Notes:
- This product is not intended for vehicles with an offset engine position
- For installation, you must modify the rotary A/C bracket
- 4WD Manual transmission models with hydraulic clutch; does not work with slave cylinder