Description
A quality head gasket is the foundation of engine reliability—it seals combustion pressure while withstanding extreme heat and cylinder pressure cycles. S&S Cycle’s 4-1/8″ gaskets are engineered with aramid fiber-reinforced graphite and a steel core to deliver consistent sealing performance across high-revving applications. If you’re rebuilding an engine or upgrading to higher boost levels, this gasket provides the durability and precision fit you need to prevent compression loss and coolant leakage.
- Bore diameter: 4-1/8″
- Material: Aramid fiber-reinforced graphite
- Steel core construction
- Stainless steel fire ring
- Anti-stick coating
- Made in the U.S.A.
- MPN: 930-0100
- Bolt-on installation






