The new line of quality OEM-style valley cover gaskets for GM LS engines from Mr. Gasket feature an aluminum backer with rubber-molded silicone for a great seal. The 11-bolt valley cover gasket was not included in the original release, but is now available!
- 61020G for GM LS1/LS6 engines with 10-bolt valley cover.
- 61021G for GM LS2/LS3/LS7/LSX engines with 11-bolt valley cover.
- Quality OEM-styling with aluminum backer and molded silicone rubber.