A'PEXi high performance metal head gaskets provide extreme protection on high horsepower Import engines. Factory/OEM head gaskets cannot withstand the pressures of high output operation and often cause the engine to "blow". This condition is actually caused by a failure in the factory/OEM head gasket. Replacing your factory/OEM head gasket with an metal one is an easy way to assure your engine does not fail due to a "blown" gasket. Each A'PEXi gasket is designed to be engine specific and provide a complete and secure seal.
Thickness Notes: This head gasket is available in different thicknesses. The thinner ones (below about 1.3mm) will increase engine compression slightly over stock (this will give you a little extra power). The thicker ones (above about 1.3mm) are for turbo Imports and will give your engine a lower compression ratio, which is better for boosted motors.
Bore Size Notes: These gaskets are slightly oversized (by about 1mm) from your factory bore so they can accommodate stock or aftermarket pistons. In other words, they will work on a stock engine or one that has up to 1mm oversized pistons.
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