Top End MLS Gasket Kit - GM LS Series

The Top End MLS Gasket Kit for GM LS Series engines by COMETIC GASKETS is engineered for builders and mechanics tackling high-performance engine builds where factory gaskets fall short. This complete top-end gasket set addresses a critical need: OEM gaskets cannot withstand sustained boost, nitrous applications, or aggressive pump-gas tuning. Whether you're upgrading an LS1, LS2, LS3, or similar derivative, this kit provides the sealing integrity required for reliable power production without failed gaskets compromising your investment.

COMETIC's Multi-Layer Steel (MLS) construction uses precision-laminated steel layers bonded to elastomer, delivering superior clamping force retention and thermal stability compared to traditional cork or composite gaskets. MLS gaskets conform microscopically to head and block surfaces, reducing blow-by and combustion gas leakage even under peak cylinder pressure spikes. The PRO1007T specification is calibrated for LS-platform displacement, bore spacing, and combustion chamber geometry, ensuring proper coverage and sealing without interference with ports or valve trains. This gasket set is designed to handle boost pressures, nitrous oxide systems, and extended duty cycles without relaxation or failure.

Professional engine builders and serious enthusiasts rely on COMETIC MLS kits for street, strip, and track applications where gasket integrity directly impacts reliability and longevity. Installation requires standard head bolt torque sequences and attention to surface preparation—clean decks and proper torque specs are non-negotiable for MLS performance. Compatibility spans naturally aspirated, supercharged, and turbocharged LS configurations, making this kit the go-to choice for any builder refusing to compromise on top-end sealing for the sake of budget.