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The Wiseco Professional Series forged piston for Subaru EJ20 4-valve applications (92.50 mm bore) is a single piston built for severe-duty and race engines. Forged from 2618 aluminum and supplied with premium rings, it includes precision ring grooves, an anti-detonation groove and ArmorGlide skirt coating to reduce friction and prevent seizure. Fully machined crown features and forced pin oiling boost durability.
Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 92.5mm Piston Shelf Stock
