The exhaust manifolds found in the 1966-1977 Small Block Ford powered Broncos were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 Long Tube off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 4.7L(289ci) and 5.0L(302ci) engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
1 x Set of Exhaust Headers
66-77 Ford Bronco 4.7L / 5.0L V8