Ford SB 289 302 351 Windsor Copper Exhaust Gasket Set When roller rocker arms are

When roller rocker arms are installed

With their compression-style design

The 10" diameter construction reduces rotational weight reducing scavenging of horsepower

withstanding up to 190

Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range

Ford SB 289 302 351 Windsor Copper Exhaust Gasket Set When roller rocker arms areThese Speedmaster exhaust gaskets are made from thick copper, and feature an embossed ridge around the exhaust port for a tight, leakproof seal. The copper gaskets help even out the flow between the head and header flange to minimize warping. Also, they'll conform to rough or irregular surfaces to maintain a positive seal, while keeping the header bolts tight.