Early Ford Bronco Exhaust Components

Early Bronco exhaust headers are available in shorty and long-tube configurations for the 289, 302, and 351 V8 engines. Shorty headers provide a modest power gain over stock exhaust manifolds and are easier to install with minimal clearance issues. Long-tube headers maximize power but require more routing consideration around the transmission of choice. Tom's Offroad carries headers designed specifically for early Bronco fitment. Some, more modern automatics with overdrive have a wider transmission pan when compared to a C4, which makes long tube headers a bit more work to assemble, but still possible.

Yes, replacing the factory cast iron exhaust manifolds with headers improves exhaust flow and increases horsepower and torque throughout the RPM range. On a stock 302, a quality header set typically can add up to 10–25 horsepower. Combined with an upgraded intake and carburetor or EFI, the gains are even more significant. Headers also reduce exhaust back pressure, which benefits fuel economy at cruise.

Shorty headers have shorter primary tubes that merge quickly into a collector, providing a modest power increase primarily in the mid-to-upper RPM range. Long-tube headers have longer equal-length primary tubes that optimize exhaust scavenging across a broader RPM band, providing more power overall. Long-tube headers are harder to install in the tight confines of the early Bronco engine bay and may require floor pan or steering modifications.

Shorty headers typically clear the early Bronco floor pan without modification. Long-tube headers often fit without issues as well. Always verify the specific fitment notes for any header set against your engine and lift height before purchasing.

Use high-temperature exhaust header gaskets rated for the temperatures generated at the cylinder head-to-header flange interface. Multi-layer steel (MLS) or embossed copper gaskets provide the best sealing on performance applications. Avoid basic fiber gaskets with header installations, as the higher heat cycling can cause them to fail prematurely. Apply a thin coat of copper gasket spray to both sides for best sealing.