SBC MLS Head Gasket 4.100 Bore .026

The SBC MLS Head Gasket 4.100 Bore .026 from FEL-PRO is a precision-engineered gasket designed specifically for small-block Chevy engine builds requiring tight bore diameters and controlled compression heights. This multi-layer steel (MLS) gasket represents the modern standard for high-performance and street engine applications where reliability and consistent sealing are non-negotiable. Whether you're rebuilding a classic muscle car engine, upgrading a performance street machine, or restoring a vintage truck, a quality head gasket is the foundation of a leak-free, long-lasting powerplant.

MLS head gaskets use multiple hardened steel layers sandwiched together to create superior sealing surfaces across combustion chambers, coolant passages, and oil galleries. The 4.100-inch bore dimension accommodates larger displacement or overbored small-block applications, while the .026-inch compressed thickness provides precise control over combustion chamber volume—critical for maintaining accurate compression ratios in modified engines. FEL-PRO's engineered design resists blowout, reduces gasket creep over thermal cycles, and eliminates the need for retorquing that plagued older composite gaskets. The stainless steel firebrands and elastomer coating ensure durability across both street and moderate racing environments.

This gasket is ideal for engine builders and mechanics installing aftermarket cylinder heads, increased displacement engines, or performance-oriented rebuilds on small-block Chevrolet platforms including 350, 383, 406, and stroker variants. Installation requires proper head bolt torque sequencing and clean sealing surfaces for maximum effectiveness. Always verify bore size and compressed thickness specifications against your specific engine combination and cylinder head to ensure perfect fitment and optimal compression chamber design.