Cometic Gasket · New
Cometic GM SB2 Small Block Aluminum/Rubber Exhaust Port Cover Set
MPN C5259 · Store SKU cgsC5259
Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
The Cometic MLS gasket is comprised of three to five layers of stainless steel. Cometic uses stainless steel for increased strength, its ability to rebound and resist corrosion. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 250°C or 482°F. GM SB2 Small Block Aluminum/Rubber Exhaust Port Cover Set GM SB2 Small Block Exhaust Port Cover Set Designed for extreme cylinder pressures
Manufacturer fitment & guides
Check C5259 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y