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BRAND NEW IN BOX Wiseco Forged Piston Kit Fits Honda & Acura B-Series 1.6L (B16), 1.7L (B17), and 1.8L (B18) DOHC Engines (Full fitment list is shown below) These are 81.5mm Bore Size (The factory bore is 81mm)Part Number K542M815 .827" / 21mm Pin Diameter -2.4cc Flat Top Typical Weight 285 grams The compression ratio will vary slightly by engine and head gasket thickness Honda Civic / Del Sol / CRX 1.6L DOHC VTEC (B16A, B16A2, B16A3) = 8.9:1 Acura Integra GSR 1.7L DOHC VTEC (B17A1) = 9.3:1 Acura Integra RS / LS / GS / SE 1.8L DOHC (B18A1, B18B1) = 9.5:1 Acura Integra GSR / Type-R 1.8L DOHC VTEC (B18C1, B18C5) = 10.0:1 LSVTEC Hybrid Engines (B18 Non-VTEC Block with B16 VTEC Head) = 9.8:1 Minimum .040” thick gasket must be used on B16 and B17 engines World renowned for their race winning pistons, Wiseco uses their diverse experience in building high performance engines for Formula 1, Indy Racing League, and NHRA Pro Stock to design and manufacture the highest technology sport compact pistons available. Every set of Wiseco sport compact pistons are made from dedicated in-house forgings to produce a light weight piston with superior strength and optimal design. As a multivalve piston technology leader, Wiseco pistons feature specially designed valve pockets, complex dome and crown shapes, stainless steel gas nitride rings and optimized skirt profiles. All Wiseco sport compact pistons also come standard with their proprietary ArmorGlide skirt coating material for reduced friction, freeing up additional horsepower. Wiseco pistons are sold as a full set of four (4) pistons and include all corresponding rings, pins and clips. Standard features include: Stainless steel gas nitride top rings Cast iron Napier hook second rings Flex-vent oil rings with gas nitride scraper rails ArmorGlide skirt coating Sold as a full set of four (4) pistons with rings, pins and corresponding clips included These use floating wrist pins so they must be used with forged connecting rods. We have Eagle H-Beam Connecting Rods and Manley H-Beam Connecting Rods available for sale if you are looking to purchase a complete package. NOTE: This item is not C.A.R.B. Approved so it cannot be sold or shipped to California addresses. FREE UPS/FEDEX SHIPPING TO THE LOWER 48 UNITED STATES! All other customers please contact us for a shipping quote Picture is for display purposes and may not be application specific Check out our store for more Honda / Acura performance parts! ![]() Be sure to add us to your favorites list! |