4.190 MLS Head Gasket .040 - SBC SB2

The 4.190 MLS Head Gasket .040 - SBC SB2 is a precision sealing component designed for serious small-block Chevy builders focused on high-RPM and boost applications. Multi-layer steel (MLS) head gaskets are preferred in performance engine work due to their ability to withstand extreme combustion pressures and temperature variations that traditional composite gaskets cannot handle.

Engineered by Cometic Gaskets, this MLS design features a .040-inch compressed thickness, ensuring reliable sealing across multiple fire rings and steel layers. This construction method effectively distributes clamping force evenly and resists blowout under high boost levels, making it ideal for performance applications.

This gasket is specifically designed for small-block Chevy Gen II (SB2) platforms, ensuring a precise fit with your cylinder head and block deck surfaces. Proper installation is crucial, requiring clean, smooth deck surfaces and correct head bolt torque sequencing to maximize sealing potential, whether you're operating at 7,000 RPM or pushing over 12 PSI of boost.