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Wiseco Professional Series forged piston (single) is a race-grade replacement for Honda B‑series 4‑valve engines, sized at 81.50mm bore with a dome profile and 0.827 in pin diameter. Machined from 2618 aluminum in the USA, it features precision ring grooves, anti-detonation measures, ArmorGlide skirt coating and forced pin oiling. Built for heavy to severe duty race applications where durability and sealing are critical.
Wiseco AC/HON B 4v DOME +8.25 STRUT 8150XX Piston *SINGLE PISTON ONLY*
