4.100 MLS Head Gasket - .053 SBC LS1 LH

The FEL-PRO 4.100 MLS Head Gasket – .053 SBC LS1 LH is a precision-engineered sealing component designed for small-block Chevrolet and LS-series engine builders who demand reliability under high compression and boost. This gasket is suitable for both left-hand and right-hand cylinder head applications on engines running elevated boost pressure or nitrous oxide systems, where traditional gasket materials may fail.

Engineered for durability, this MLS head gasket utilizes Multi-Layer Steel construction with interlocking stainless steel layers and an elastomer coating to maintain a consistently tight seal across varying head surface finishes and thermal cycles. The .053-inch thickness is designed to provide proper head-to-block spacing while accommodating the geometric tolerances of modern LS1 cylinder heads and small-block Chevrolet applications.

This gasket material resists blowout at high combustion pressures and maintains seal integrity through repeated heat cycling, making it critical for forced-induction and naturally aspirated high-compression builds. The 4.100-inch bore size ensures precise fitment to your engine's combustion chamber, minimizing excess material that could trap carbon deposits.