Hedman Elite Long Tube Headers 283-400 SBC GM Truck 67-87 Matte Ceramic 1-5/8”

Give your 1967-1987 GM truck with a 283-400 small-block Chevy a power upgrade with these Hedman Elite long tube headers. Designed around 1-5/8” tubes, these headers will provide an abundant amount of exhaust flow, providing you with significant horsepower and torque gains. Hedman designs their Headers using a gasketless ball-and-socket design that allows you to bolt your system up without fussing over the perfect alignment. The Matte Ceramic coating helps retain heat in the tubes, reducing temperatures under the hood.

Features and Benefits:
- Sold as a pair of long tube 1-5/8” headers
- Oval cylinder head port shape 
- Mild steel, elite heavy-duty construction 
- Matte silver ceramic-metallic coated 
- Includes gaskets, 2-1/2” reducers, 3” collector, and hardware 

Each header is crafted from mild steel with smooth-flowing, CNC mandrel bent tubes, that are hand-welded to ensure consistently high quality. The long-tube design allows substantial exhaust flow, resulting in better breathing for your engine, which produces higher horsepower and torque. 

Vehicle Fitment:
- 1967-1987 Chevy C10, C20, C30, K10, K20
- 1973-1987 Chevy K30
- 1967-1972 GMC C1500, C2500, C3500, K1500, K2500
- 1973-1980 GMC C15, C25, C35, K15, K25, K35
- 1981-1987 GMC C1500, C2500, C3500, K1500, K2500, K3500 
- Compatible with 283-400 C.I. small-block Chevy engines 
- Fits factory aluminum angle and straight plug heads (L98 profile only) 

Additional Notes:
- Not legal for street use on 1975 and later model years. 
- Requires modifications to the rotary A/C bracket. 
- Not for use on vehicles with offset engine position. 
- 4WD manual transmission models with hydraulic clutch, does not work with slave cylinder.