SBC MLS Head Gasket 4.200 Bore .053

The FEL-PRO SBC MLS Head Gasket 4.200 Bore .053 is designed specifically for small-block Chevrolet engines that require dependable cylinder sealing under high compression and boost conditions. This gasket is ideal for enthusiasts rebuilding classic muscle cars, tuning street engines, or preparing dedicated race platforms.

Constructed from multi-layer steel (MLS), this head gasket offers superior durability compared to traditional composite designs. The multiple steel layers are bonded together to withstand deformation under high combustion pressure, ensuring optimal performance. The 4.200-inch bore diameter and .053-inch thickness are calibrated for effective compression ratio control and thermal expansion compatibility.

This gasket is suitable for builders running naturally aspirated combinations up to 650 horsepower and supercharged or turbocharged engines in the 450–550 hp range. Proper installation requires clean machined surfaces, correct head bolt torque sequencing, and quality fasteners to maximize performance and longevity.