JE Pistons and Rings 100 Bore 79mm Stroke 11.5 Comp 1997-1999 Subaru EJ25 DOHC

Part #: 314340. JE pistons and rings are engineered for extreme use, even in professional competitions. In high - stress scenarios with high compression ratios, heavy boost, or nitrous use, the 2618 aluminum alloy offers high tensile strength. Fitment: 1997 - 1999 SUBARU EJ25 DOHC. STD Bore: 99.5mm, Deck Clearance is '0', Compression calculated with.054' Head Gasket. Features: No deburring needed for dome/dish. Made of 2618 T6 high - tensile forged aluminum. Smooth radii on dome and dishes for great flame travel. Ring widths are 1.2 x 1.2 x 2.5mm. Comes with.905 x 2.500 (Round Forging) and.905 x 2.250” (FSR Forging) straight - wall carbon steel wrist pin. Includes pin fitting, Tru - Arc locks, 4 pistons, and 4 rings.

Using these JE pistons and rings is straightforward. First, make sure your engine is the 1997 - 1999 SUBARU EJ25 DOHC with the correct bore size of 99.5mm. When installing, check the deck clearance is '0' and use a.054' head gasket as required for compression calculation. The pistons come ready - to - use with no deburring needed on the dome or dish. Be careful when handling the wrist pins and make sure to use the provided pin fitting and Tru - Arc locks. For maintenance, regularly check the pistons and rings for wear and tear. If you notice any signs of damage or excessive wear, it's best to replace them. Keep the engine clean to prevent debris from getting into the pistons and rings, which could cause problems.