Big Block Chevy Extra Thick Bolt Xtreme Marine Seal™ Valve Cover Gasket- Sold in Pairs
There is nothing more frustrating than a leaking valve cover seal, so don't settle for anything less than the best. That's why professional engine builders nationwide demand Xtreme Marine Seal valve cover gaskets. Produced from a blend of polymer and cork to provide a gasket that will last. Gaskets are .300" thick.