SCE Copper Header Gaskets - 409 Chevy H77715FXXL The original Holley 0-4412 has

The original Holley 0-4412 has powered thousands of racers to the winners' circle

90 lb/in Spring Rate

ButlerBuilt Seat 16in SFI 39

Whether in triple process

SCE Copper Header Gaskets - 409 Chevy H77715FXXL The original Holley 0-4412 hasProduct Description: Exhaust Header Manifold Gasket Pro Copper Stock Port Copper GM W Series Pair SCE Gaskets specializes in gaskets for nearly every part of the engine that requires a gasket. They offer a variety of different materials for a large selection of applications. SCE has raised the bar for cylinder head sealing performance and consistency. Our new Gas Stopper enhancement to MLS Spartan head gaskets is an example of superior design, tooling