Wiseco B Series 84.5MM +2CC 11.4 COMP Pistons

Wiseco
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Wiseco Part # K567M845AP
Set of 4. Produces a Compression Ratio of: 11.4:1 in a B20B w/PR3 Head

Wiseco Acura 4v DOME +2cc STRUTTED 84.5MM Piston Kit

WISECO Forged Pistons. Wiseco Sport Compact pistons are made from dedicated forgings produced in-house to give you a lightweight piston with superior strength and optimal design. Being the multivalve piston technology leader, this line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier rings and optimised skirt profiles. The pistons come standard with the ArmorGlide® coating material for reduced friction and noise, freeing up horsepower. Sold in complete sets with pins and rings. Please note, these are a non-stock item and delivery can take 10-15 days.


Wiseco brings over 60 years of experience to the import world. These years include developing pistons in Formula 1, Indy Racing League, and NHRA Pro Stock. This racing technology allows Wiseco to bring the latest innovations in piston technology to the Sport Compact market.

Works with larger bore B Series motors.

Valve pocket designs maximizes flow around valves
Oversize valves and high lift camshafts can be utilized.
Pistons crown shapes designed to promote maximum intake charge efficiency through "CROSS FLOW" during intake and exhaust valve overlap.
Complex Piston skirt profiles and coatings reduce power robbing friction, prolong piston life, and increase horsepower

Wiseco pistons and ring kits for Honda/Acura applications. Wiseco pistons feature an advanced forging process, heat-treating and a fine finishing processes to ensure superior performance and reliability. Their crown thickness and ring lands perform superb in engines with power adders like turbochargers, superchargers, and nitrous oxide. They come complete with high-quality piston rings and wrist pins. Whether on the street or at the track you can depend on the maximum strength and minimum variance of Wiseco's aluminum-forged pistons for your sport compact vehicle.

Generally Ships in 10-15 Business Days

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