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:
Year
Make
Model
Submodel
1987
Buick
Regal
GNX
1984-1987
Buick
Regal
Grand National
1987
Buick
Regal
Limited
1983-1986
Buick
Regal
T-Type
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