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The Wiseco Professional Series forged piston set is a four-piece GM 2.2L kit with an 86.50 mm bore and 10:1 compression ratio, specified for certain ECOTEC engines. Manufactured from 2618 forged aluminum in the USA, these pistons include premium rings and ArmorGlide skirt coating, precision ring grooves, an anti-detonation groove, fully machined crowns and forced pin oiling for demanding performance and race applications.
Wiseco GM ECOTEC 10:1 CR FT 1.053 X 86.5 Piston Shelf Stock Kit
