Cometic GM Small Block Aluminum/Rubber Exhaust Port Cover Set - 18 Degree Heads - C5258

The Cometic GM Small Block Aluminum/Rubber Exhaust Port Cover Set - 18 Degree Heads - C5258 is a precision-engineered exhaust gasket.

Cometic Rubber exhaust gaskets are built to withstand the extreme heat and pressure cycles of high-performance exhaust systems. Featuring Rubber construction, this gasket uses a flexible elastomeric compound engineered for leak-free sealing in low-pressure applications. Designed to seal flanged connections between the exhaust manifold/header and the cylinder head or down-pipe, these gaskets prevent exhaust leaks that rob power and cause drone.

• Material: Rubber
• Part Number: C5258

Verified fitment: Buick Apollo (1973–1975); Buick Skylark (1968–1971); Buick Special (1968–1969); Chevrolet Bel Air (1963–1973); Chevrolet Biscayne (1963–1972); Chevrolet Blazer (1969–1974); Chevrolet Brookwood (1969–1972); Chevrolet C10 (1963–1984); and 54 more.