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IAG Fire-Lock Head Gaskets EJ25 / EJ257, 100mm, 0.051" for 14mm Head Studs

After years of research and development testing, the IAG Performance Fire-Lock head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are insta. . . Show More >

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