LS9 Head Gaskets - Pair

The LS9 Head Gaskets – Pair from Brian Tooley Racing are premium cylinder head gaskets engineered for GM LS-series engines. Built for enthusiasts and engine builders who demand reliability during high-performance builds, stroker applications, or complete engine overhauls, these gaskets deliver the precision sealing required to prevent compression loss and coolant leaks. Whether you're rebuilding a naturally aspirated LS or preparing a forced-induction platform, this pair ensures both cylinder heads seal consistently across the full bore diameter.

These LS9 Head Gaskets feature a 4.100-inch bore size with a 0.055-inch compressed thickness, engineered from multi-layered steel construction for superior durability and heat resistance. The multi-layer design distributes clamping force evenly across the sealing surface, reducing the risk of hot spots and gasket failure under sustained boost or high RPM operation. The 0.055-inch compressed thickness is precisely calculated for LS-series cylinder head geometry, ensuring optimal compression and combustion chamber volumes while maintaining proper gasket crush at OEM or aftermarket head bolt torque specifications.

Engine builders, performance shops, and serious DIY technicians benefit most from Brian Tooley Racing's reputation for OEM-quality gasket manufacturing. These gaskets are compatible with all GM LS-series engine variants—including LS1, LS2, LS3, LS6, LS7, LS9, and LSA platforms—making them ideal for stock replacement, turbo conversions, or supercharger builds. The pair format covers both cylinder heads in a single purchase, streamlining parts ordering and reducing installation downtime. Proper installation requires torquing head bolts to manufacturer specifications and using fresh fasteners when applicable.