GM Performance - LS, SIDE SUMP SEAL, GM 12611384

Chevrolet Performance Oil Cooler Block-Off Gaskets

The oil cooler block-off plate was a common issue on certain GM products for a time. These Chevrolet Performance oil cooler block-off gaskets are designed with precision to ensure leak protection. Installed correctly, they allow for almost 99 percent effectiveness in your Chevy engines.