4.080 MLS Head Gasket .030 - SBC Vortec

The 4.080 MLS Head Gasket .030 - SBC Vortec from Cometic Gaskets is a precision-engineered engine seal designed for small-block Chevrolet and Vortec applications. Built for mechanics, engine builders, and performance enthusiasts who demand reliability during high-stress engine assembly, this multi-layer steel (MLS) gasket provides superior sealing integrity compared to conventional composite gaskets. Whether you're rebuilding a stock engine or upgrading a performance platform, this gasket prevents coolant and oil leakage at the cylinder head interface—critical for engine longevity and performance consistency.

Manufactured using advanced multi-layer steel construction, the 4.080 bore diameter with .030-inch thickness allows for precise compression and uniform clamping load distribution across the cylinder head. The MLS design employs layered steel plates bonded with elastomer, which provides superior conformability to machined deck surfaces and reduces the risk of gasket failure under sustained pressure and thermal cycling. This engineering approach resists deformation, prevents micro-leakage, and maintains a reliable seal even in high-RPM or turbocharged applications where traditional gaskets fail. The gasket's compact 0.7-pound weight and precision-engineered dimensions ensure straightforward installation without requiring special tools or expertise.

This gasket is essential for anyone performing a small-block Chevrolet or Vortec engine rebuild, whether for truck, performance car, or industrial applications. Engine builders and technicians rely on Cometic's reputation for producing gaskets that exceed OEM specifications while maintaining compatibility with stock and modified cylinder head configurations. Installation requires standard engine assembly procedures: clean deck surfaces to manufacturer specification, apply appropriate sealant if recommended by your build manual, and torque cylinder head bolts to factory specifications. Proper surface preparation and bolt torque sequence are critical to gasket performance and engine reliability.