Header Gasket - LS1 Large Race Port

The FEL-PRO Header Gasket - LS1 Large Race Port is specifically designed for high-performance LS1 engine builds, addressing the limitations of stock gaskets in demanding applications. This gasket is ideal for enthusiasts and professional shops working with naturally aspirated strokers, forced induction setups, or multi-port fuel injection systems.

Constructed from a high-performance composite material, this gasket provides robust sealing between custom-ported cylinder heads and performance headers. It is engineered to handle the thermal cycling and combustion pressures associated with race-grade power outputs, ensuring reliability under extreme conditions.

This gasket is particularly beneficial for LS1 engine platforms running custom-ported heads with oversized intake or exhaust ports, especially in applications exceeding 400+ horsepower. Its design minimizes the risk of gasket compression and blowby, making it a critical component for serious racing applications.