The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.
Certificate of Origin


This Part Fits:

Year	Make	Model	Submodel
2015-2018	Ford	Mustang	Shelby GT350
2015-2018	Ford	Mustang	Shelby GT350R
1967-1970	Toyota	2000GT	Base