Wiseco K568M87 Forged Piston Kit for Honda/Acura K20/K24 87mm Bore

Vehicle Fitment

• 2002-2006 Acura RSX Type-S (K20A2/K20Z1)
• 2004-2008 Acura TSX (K24A2)
• 2002-2006 Honda CR-V (K24A1)
• 2003-2007 Honda Accord 2.4L (K24A4/K24A8)
• 2003-2011 Honda Element (K24A4/K24A8)

Fitment Notes

• Designed for Honda/Acura K20A, K20Z, K24A, and K24Z engines
• Ideal for K24 block with K20A/Z cylinder head builds (Frankenstein combo)
• 87mm standard bore -- no overbore required for K20 applications
• Larger and deeper valve pockets for aggressive camshaft profiles
• Sold as a complete set of 4 pistons with rings and wrist pins
• Professional engine builder installation required
• Not CARB legal -- not for sale or street use in CA and CARB states

Features

• Wiseco Professional Series forged racing pistons
• Forged and machined in the USA from 2618 aluminum
• ArmorGlide skirt coating for reduced friction and seizure resistance
• Crown thickness and ring lands designed for turbo, supercharger, and nitrous
• Gas nitrided top ring -- ideal for turbocharged applications
• Napier-style second ring for excellent oil control
• 4130 chrome moly wrist pins included
• Anti-detonation grooves and forced pin oiling
• Strutted design for maximum strength under high cylinder pressure

Specifications

• Part Number: K568M87
• Brand: Wiseco
• Product Line: Professional Series Sport Compact
• Type: Forged Piston and Ring Kit
• Piston Style: Dish (-9cc)
• Piston Material: 2618 Forged Aluminum
• Bore: 87.00mm (3.425")
• Compression Height: 30.00mm (1.181")
• Pin Diameter: 22mm (0.866")
• Pin Material: 4130 Chrome Moly
• Piston Weight: 303g
• Top Ring: 1.0mm -- Steel, Gas Nitrided
• Second Ring: 1.2mm -- Cast Iron, Phosphate Coated
• Oil Ring: 2.8mm -- Stainless Steel, Standard Tension
• Replacement Ring Set: 8700XX
• Replacement Wrist Pin: S550
• Quantity: Sold as a set of 4
• Country of Origin: United States (Mentor, Ohio)
• Warranty: Wiseco Limited Warranty
• UPC: 193564075635

Included Components

• Wiseco Professional Series forged pistons (set of 4)
• Matching piston ring sets (4)
• 4130 chrome moly wrist pins (4)
• Wrist pin retainers (Spirolox locks)

Product Description

The Wiseco K568M87 is a set of four Professional Series forged pistons with matching rings and wrist pins for Honda and Acura K-Series engines. Designed for both K20A/K20Z and K24A engines -- including popular K24 block with K20 head Frankenstein builds -- these -9cc dish pistons feature an 87mm standard bore with larger and deeper valve pockets to accommodate aggressive camshaft profiles. Engineered, forged, and precision-machined in the USA from 2618 aluminum alloy, these pistons deliver the superior tensile strength required for heavy-duty turbocharged, supercharged, and nitrous applications. Each piston comes coated with Wiseco's ArmorGlide skirt coating for reduced friction, quieter operation, and seizure resistance. The included piston ring sets feature a gas nitrided steel top ring optimized for boosted applications, a phosphate-coated Napier-style second ring for superior oil control, and a stainless steel 3-piece oil ring assembly. Each kit also includes 4130 chrome moly wrist pins and Spirolox retainers. Backed by the Wiseco Limited Warranty.