The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011 | Buick | Regal | CXL |
| 2012-2013 | Buick | Regal | GS |
| 2012-2013 | Buick | Regal | Premium |
| 2010 | Chevrolet | HHR | SS |