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The Cometic exhaust port cover set for GM small block 18-degree heads provides aluminum/rubber port covers tailored for that head angle. Designed to handle extreme cylinder pressures, the components resist corrosion and maintain seal under varied flange conditions. The set is asbestos free and formulated to prevent burn-through or push-out, preserving torque set and requiring no sealants for dependable operation in demanding exhaust environments.
Cometic GM Small Block Aluminum/Rubber Exhaust Port Cover Set - 18 Degree Heads
