66-77 302w Ford Bronco

The 66-77 302w Ford Bronco headers from HEDMAN (SKU HED89410) are purpose-built exhaust manifolds engineered for small-block Ford engines in classic Bronco platforms. Whether you're restoring a stock engine or upgrading a modified 302, these street headers deliver improved exhaust scavenging and thermal management compared to restrictive factory manifolds. Built for enthusiasts who demand both reliability and performance gains on the road or light off-road duty, these headers eliminate backpressure that robs horsepower and throttle response.

Constructed from durable steel with a protective black powder coat finish, the 66-77 302w Ford Bronco headers feature a 1.5-inch primary tube diameter that feeds into a 2.5-inch collector, optimized for small-block Ford displacement and torque curves. This tube-to-collector stepped design balances scavenging efficiency with street-legal exhaust note control. The header pair comes complete with all necessary gaskets and hardware for bolt-on installation, eliminating fitment guesswork. At 23.15 lbs total weight, the assembly is substantial enough for quality construction without excessive underhood heat soak.

These headers are designed specifically for Ford compact SUVs manufactured between 1968 and 1977, with verified compatibility for 302-cubic-inch small-block engines. Mechanics and Bronco owners doing engine swaps or stock replacements will appreciate the included gasket kit and mounting hardware, reducing assembly time and ensuring leak-free operation. The street-tuned header design maintains engine cooling while improving exhaust flow, making this an ideal choice for drivers seeking measurable throttle response improvement without sacrificing reliability or requiring custom fabrication work.