MLS Exhaust Gasket - SBC 1.500 Round Port

The MLS Exhaust Gasket for Small Block Chevy with 1.500 round port design is a multi-layer steel manifold gasket engineered to seal the critical junction between header and cylinder head. This pair gasket delivers reliable sealing under sustained combustion pressures and thermal cycling, essential for maintaining compression integrity and preventing exhaust leakage during both street and performance driving applications.

Multi-layer steel construction provides superior heat resistance and durability compared to traditional soft gasket materials. The 1.500-inch round port specification ensures direct fitment to manifolds designed for Small Block Chevy heads without port mismatch or binding. The pair configuration supplies gaskets for both driver and passenger side exhaust ports, eliminating the need for separate purchases. Weighing 0.45 lbs and dimensioned at 5.05 x 0.4 x 19.65 inches, these gaskets integrate into standard SBC engine bay configurations without modification.

SBC engine builders, restoration specialists, and performance technicians rely on properly specified exhaust gaskets to prevent blowby and maintain accurate oxygen sensor readings. This product addresses the core requirement of any SBC manifold installation or rebuild—sealing the header-to-head interface with material engineered to withstand repeated thermal stress. Whether restoring a classic SBC platform or maintaining an existing performance engine, correct gasket specification prevents costly leaks and sensor faults that degrade reliability.

The multi-layer steel design represents the standard gasket technology for SBC applications where vibration and heat demand materials tougher than compressed asbestos. Proper installation with manifold bolts torqued to specification ensures uniform sealing pressure across both ports and extends gasket life through the service interval.