Cosworth's 92.mm 8.5:1 forged piston set for the 2002-05 Subaru WRX EJ20 (2.2L / 79mm crank) uses the same design methods as in their Formula One pistons. Cosworth has designed a piston built to handle extreme abuse and conditions. Forged from a high-grade aluminum, their pistons include anti-scuff skirt coatings, super strong pins and polished tops with anti-detonation bands producing a lower level of friction, unrivaled strength, and impeccable sealing abilities.
Using the most advanced technologies with the highest level of quality materials and not settling for anything less that perfection, Cosworth created pistons that exceed the demands of high-performance racing engines.
*MUST BE USED WITH COSWORTH 79MM STROKER CRANK
Piston Set Includes:
- (x4) Pistons
- (x4) Wrist Pins
- (x8) Wrist Pin Clips
*Piston Ring Set Not Included
- COS1 20002489, Replacement Piston
- COS1 20003605, Replacement Rings
- COS1 PA2674, Wrist Pin
- COS1 PP5433, Wrist Pin clip
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