Wiseco Professional Series +5cc 12.5:1 CR Piston Kit for Select 2002-2011 Honda & Acura (K24 w/ K20 Head) K634M87

Fits select 2002-2011 Acura RSX, TSX and Honda Accord, CR-V, and Element models utilizing a K24 block with a K20 head (K24/K20 hybrid builds). This Wiseco Professional Series shelf stock kit is engineered for high-compression, heavy-duty racing applications.

Forged from 2618 aluminum alloy for superior tensile strength and heat resistance, these pistons are designed to handle the increased cylinder pressures of a 12.5:1 compression ratio build. Each piston features Wiseco’s ArmorGlide skirt coating to reduce friction and prevent seizure, along with an anti-detonation groove to protect the ring land. The fully machined crown includes a +5cc dome specifically profiled for K-series head combustion chambers. For improved reliability at high RPM, the kit includes forced pin oiling to maintain a consistent oil film on the wrist pin.

• Manufacturer Part Number: K634M87
• Material: 2618 Forged Aluminum
• Compression Ratio: 12.5:1 (approximate, based on K24/K20 configuration)
• Dome Volume: +5cc
• ArmorGlide skirt coating for reduced friction and wear
• Precision-machined ring grooves and anti-detonation grooves
• Forced pin oiling for enhanced lubrication
• Includes premium rings, wrist pins, and circlips