MLS LS Header Gaskets - Pair

The MLS LS Header Gaskets - Pair by Brian Tooley Racing delivers OEM-equivalent sealing performance for GM LS-series engine builders and performance enthusiasts. These multi-layered steel gaskets seal the critical junction between cylinder head and exhaust manifold, preventing combustion gas leakage that degrades power output and creates external heat management issues. Purpose-built for high-boost and naturally aspirated LS applications, this pair covers both cylinder banks and is essential for any LS engine rebuild, turbo conversion, or supercharger installation.

Multi-layered steel construction provides superior thermal cycling resistance and gasket resilience compared to composite alternatives, critical for the intense heat cycling around the exhaust port. The 1.87-inch round port design matches OEM and popular aftermarket LS header specifications, ensuring proper clamping load distribution across the sealing surface. Steel composition resists blowout under sustained boost pressure and repeated temperature swings from idle to sustained RPM, maintaining a reliable seal through thousands of heat cycles without degradation or creep.

Whether you're running factory LS1/LS2 heads, aftermarket cylinder heads, or turbocharged/supercharged platforms, proper header gasket selection is non-negotiable for leak-free assembly. Installation requires standard header bolt torque specifications and a clean sealing surface free of carbon or debris. This pair covers both sides of any LS-based engine platform—LS1, LS2, LS3, LS7, LSA, LT1, or LT4—making it the go-to solution for engine builders, tuners, and experienced enthusiasts performing LS swaps or complete engine refreshes.