4.130 MLS Head Gasket .051 - GM LS1

The 4.130 MLS Head Gasket .051 - GM LS1 from COMETIC GASKETS is a precision-engineered cylinder head gasket designed for GM LS-series engine builders and enthusiasts who demand reliable sealing under high-performance conditions. This multi-layer steel gasket serves as a critical sealing component between the cylinder head and engine block, preventing coolant and combustion gas leakage while maintaining proper compression integrity. Built for applications where durability and precision matter, this gasket is essential for engine rebuilds, performance upgrades, and high-horsepower applications.

Constructed from multi-layer steel (MLS) material, the 4.130 MLS Head Gasket utilizes advanced composite layering to create superior conformability and sealing performance across varying surface finishes and operating pressures. The 0.051-inch compression thickness is engineered to maintain proper combustion chamber volume and compression ratio for LS1 engines, ensuring optimal performance characteristics without sacrificing reliability. The 4.130-inch bore diameter precisely matches LS1 cylinder specifications, allowing for proper fitment and maximum sealing surface contact. MLS gasket technology resists blowout failures and provides improved reusability compared to conventional gasket materials.

This gasket is ideal for LS1 engine builders, automotive technicians, and performance enthusiasts undertaking cylinder head work or complete engine assembly. Whether you're rebuilding a stock LS1, restoring a classic vehicle, or upgrading to higher compression ratios, proper gasket selection directly impacts engine longevity and performance reliability. Installation requires careful surface preparation and proper torque sequencing to achieve optimal sealing; always follow manufacturer specifications for head bolt torque patterns. COMETIC's reputation for precision manufacturing ensures this gasket meets OEM performance standards while delivering the consistency professional builders expect.