Collector Gasket

The Hedman Collector Gasket (Part No. 27420) is a purpose-built exhaust manifold seal designed for high-temperature engine applications. This gasket is ideal for mechanics, fabricators, and engine builders working on custom headers, turbo setups, and manifold-to-collector transitions where precise fitment is required.

Constructed with a steel core laminate, this gasket is designed to withstand the thermal stress of sustained engine operation. Its thickness of 0.063 inches balances sealing force with surface flatness requirements, ensuring even clamp pressure across the bolt holes. The laminated construction resists blow-by and thermal cycling fatigue, making it a reliable choice for high-performance applications.

This gasket serves a variety of engine configurations, particularly those requiring dual-outlet or dual-manifold setups. Its specifications ensure repeatability, which is critical for baseline engine diagnostics that depend on eliminating exhaust leaks. The Hedman Collector Gasket is a dependable solution for enhancing exhaust performance in various engine builds.