4.540 MLS Head Gasket .036 - BBC

The 4.540 MLS Head Gasket .036 - BBC from Cometic Gaskets is designed for high-performance big-block Chevrolet engines that require exceptional reliability and sealing precision. This gasket is ideal for serious engine builders, race teams, and street performance enthusiasts who prioritize cylinder head sealing integrity. Whether you're building a new engine or refreshing an existing one, this gasket is engineered to deliver durability and leak-free performance.

Constructed from multi-layer steel (MLS), this gasket features alternating layers of spring steel and elastomer, allowing it to adapt to deck surface irregularities while maintaining clamping load under extreme conditions. The 0.036-inch thickness and 4.540-inch bore diameter are specifically designed for BBC applications, ensuring optimal compression without the need for decking modifications. Cometic's precision manufacturing guarantees consistent gasket thickness and surface finish, which are crucial for preventing blown gaskets during high-RPM or forced-induction operations.

Builders who choose MLS gaskets for BBC engines will experience a reduced risk of coolant or oil seepage, which are common issues with older gasket designs in high-output applications. This gasket is particularly effective in setups that utilize boost, nitrous, or aggressive naturally aspirated configurations where cylinder pressures are high. With its robust design, the 4.540 MLS Head Gasket is an essential component for anyone looking to build a reliable and powerful engine.