These gaskets feature Micropore MP-2N an ultra-modern environmentally safe gasket material provides excellent sealing on rough, irregular flange surfaces. Edelbrock S/B Chev Intake Gasket Edelbrock part #61459 Performer RPM Marine-Duty cylinder heads are designed for use with Oval Port Big-Block Chevy Marine applications. Chevrolet:Small-Block Gen I:302 (4.9L)/327 (5.4L)/350 (5.7L)/400 (6.6L)
