【Compatibility】Exhaust headers for 1966-1987 Chevy GMC trucks with 283-400 small block V8 2WD & 4WD
【Unique Design】These exhaust headers feature full-length mandrel-bent tubing with precision-engineered curves to minimize exhaust backpressure delivering improved fuel economy.
【Material】SBC headers mandrel-bent tubing optimizes exhaust flow dynamics, reducing backpressure to enhance throttle response and low-end torque.
【Easy Installation】Headers 5.7 Chevy 350 Includes all mounting hardware for direct fitment. To prevent clearance issues, use short-thread spark plugs and plug wire heat shields. we suggest taking it to a pro installation shop.