BBC V/C Gaskets Silicone w/ Steel Core 1pr

The BBC V/C Gaskets Silicone with Steel Core (1 pair) from Allstar Performance is engineered for big-block Chevy engines where valve cover sealing demands both durability and reliability. These gaskets are designed for builders and mechanics who need a dependable seal that resists oil leakage under high heat and pressure cycling. Whether you're running a street engine, strip warrior, or vintage muscle car, a proper valve cover gasket is non-negotiable for keeping oil contained and engine bay clean.

Construction combines premium silicone material with an embedded steel core reinforcement, delivering superior compression set resistance and longevity compared to cork or standard rubber alternatives. The silicone elastomer maintains its sealing properties across a wide temperature range, critical for BBC applications that generate substantial heat at the cylinder head. The steel core prevents gasket extrusion under boost or high intake manifold vacuum, ensuring the seal remains intact mile after mile. This hybrid approach eliminates the oil weeping and hardening issues common with aged cork gaskets, while providing the conformability silicone offers for irregular machined surfaces.

Mechanics and engine builders trust Allstar Performance for OEM-quality components, and this valve cover gasket set fits any big-block Chevy platform—from 348ci big-blocks through modern LS variants with BBC-pattern heads. Installation is straightforward: clean the valve cover sealing surface thoroughly with a wire brush to remove old gasket material and residue, then position the new gaskets and reinstall covers to factory torque specs. For forced-induction engines or high-revving builds, these gaskets provide the reliability needed to prevent costly oil leaks that can contaminate plug wires, ignition components, or belts. One pair covers both valve covers on a standard BBC engine.