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Features, Description, Q&A
High-Performance Header Gasket. The Mr. Gasket 1965-1990 Big Block header gaskets are engineered to provide a reliable seal between the exhaust header flange and the cylinder head ports. These gaskets help prevent exhaust leaks that can reduce engine performance and efficiency, making them essential for maintaining optimal power output in Chevrolet Big Block engines.
Construction and Appearance. Made from a heavy-duty, .062 inch thick high-temperature acrylic blend material, these gaskets deliver excellent heat resistance and long-lasting durability. The precision die-cut design assures a precise fit, and the gasket surface is built to withstand the extreme temperatures encountered in street and racing environments.
Installation. Installation requires no drilling, as these gaskets fit directly onto the engine’s existing ports. They can also be trimmed to accommodate modified header ports if necessary, allowing for flexible installation options.
Warranty. Backed by a manufacturer’s limited 90-day warranty for added peace of mind.
Application. Designed to fit select 1965-1990 Chevrolet Big Block 396 to 454 engines with round ports sized 1.85 inch by 1.90 inch. This includes compatibility with 1967-1990 Camaro Big Block engines and other Chevrolet/GMC vehicles within this range.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov