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The Wiseco Professional Series forged piston is a single, heavy-duty replacement tailored for Honda K20 engines. This piston has an 86.50 mm bore, 1.181 in compression height and a 0.8661 in pin diameter and comes with premium rings. Machined from 2618 aluminum and treated with ArmorGlide skirt coating, it adds precision ring grooves, an anti‑detonation groove, forced pin oiling and a fully machined crown for competition reliability.
Wiseco Acura 4v R/DME -9cc STRUTTED 86.5MM Piston Shelf Stock
