{"product_id":"wiseco-k631m87-professional-series-forged-honda-k20a-piston-set-87mm-bore-30mm-compression-height-0-866-inch-pin-diameter","title":"Wiseco K631M87 Professional Series Forged Honda K20A Piston Set – 87mm Bore, 30mm Compression Height, 0.866-inch Pin Diameter","description":"Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series.\nWiseco Honda K20A Piston Set, 87.00 mm Bore, 30.00 mm Compression Height, 0.866 in. Pin Diameter, Sport Compact, Set of 4.\n\u003cul\u003e\n  \u003cli\u003eEngineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength\u003c\/li\u003e\n  \u003cli\u003ePrecision ring grooves, anti-detonation groove, and additional ring seal improving features\u003c\/li\u003e\n  \u003cli\u003eArmorGlide  Skirt Coating: seizure resistant, friction reduction, and quieter operation\u003c\/li\u003e\n  \u003cli\u003eDesigned and built to withstand heavy to severe duty performance applications\u003c\/li\u003e\n  \u003cli\u003eFully machined crown features\u003c\/li\u003e\n  \u003cli\u003eForced pin oiling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Wiseco K631M87 Professional Series forged racing pistons are engineered for serious performance enthusiasts and professional builders. Crafted from high-strength 2618 aluminum in the USA, these pistons deliver exceptional tensile strength and durability for heavy-duty and severe performance applications. Designed specifically for Honda K20A engines, this set of four pistons features precision-machined crowns and optimized ring grooves, including an anti-detonation groove that enhances combustion control and power output. The package includes premium rings and fully machined components to ensure reliable, high-performance operation in demanding racing conditions.\u003cbr\u003eWiseco’s ArmorGlide skirt coating reduces friction and seizure risk while providing quieter operation, contributing to improved engine longevity and efficiency. Forced pin oiling ensures robust lubrication at critical contact points, supporting high RPM usage and intense engine loads. These pistons are engineered to withstand the rigors of racing and tuning environments, making them ideal for performance upgrades on Honda CR-V models from 2002 to 2006. They are not carb-approved and require acknowledgment of prop 65 compliance, emphasizing safety and environmental considerations. Designed for professional and serious amateur racers, Wiseco’s Professional Series pistons remove limits and unlock the full potential of your engine, ensuring consistent power and durability across competitive and high-performance applications.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEngineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePrecision ring grooves, anti-detonation groove, and additional ring seal enhancing features\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned to withstand heavy to severe duty performance applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully machined crown features for precise fit and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eForced pin oiling for enhanced lubrication and durability\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2002 Acura RSX Type-S\u003cbr\u003e\n2002 Honda CR-V EX\u003cbr\u003e\n2002 Honda CR-V LX\u003cbr\u003e\n2003 Acura RSX Type-S\u003cbr\u003e\n2003 Honda Accord DX\u003cbr\u003e\n2003 Honda Accord EX\u003cbr\u003e\n2003 Honda Accord LX\u003cbr\u003e\n2003 Honda CR-V EX\u003cbr\u003e\n2003 Honda CR-V LX\u003cbr\u003e\n2003 Honda Element DX\u003cbr\u003e\n2003 Honda Element EX\u003cbr\u003e\n2004 Acura RSX Type-S\u003cbr\u003e\n2004 Acura TSX Base\u003cbr\u003e\n2004 Honda Accord DX\u003cbr\u003e\n2004 Honda Accord EX\u003cbr\u003e\n2004 Honda Accord LX\u003cbr\u003e\n2004 Honda CR-V EX\u003cbr\u003e\n2004 Honda CR-V LX\u003cbr\u003e\n2004 Honda Element DX\u003cbr\u003e\n2004 Honda Element EX\u003cbr\u003e\n2004 Honda Element LX\u003cbr\u003e\n2005 Acura RSX Type-S\u003cbr\u003e\n2005 Acura TSX Base\u003cbr\u003e\n2005 Honda Accord DX\u003cbr\u003e\n2005 Honda Accord EX\u003cbr\u003e\n2005 Honda Accord LX\u003cbr\u003e\n2005 Honda Accord SE\u003cbr\u003e\n2005 Honda CR-V EX\u003cbr\u003e\n2005 Honda CR-V LX\u003cbr\u003e\n2005 Honda CR-V SE\u003cbr\u003e\n2005 Honda Element EX\u003cbr\u003e\n2005 Honda Element LX\u003cbr\u003e\n2006 Acura RSX Type-S\u003cbr\u003e\n2006 Acura TSX Base\u003cbr\u003e\n2006 Honda Accord EX\u003cbr\u003e\n2006 Honda Accord LX\u003cbr\u003e\n2006 Honda Accord LX Special Edition\u003cbr\u003e\n2006 Honda Accord Value Package\u003cbr\u003e\n2006 Honda CR-V EX\u003cbr\u003e\n2006 Honda CR-V LX\u003cbr\u003e\n2006 Honda CR-V SE\u003cbr\u003e\n2006 Honda Element EX\u003cbr\u003e\n2006 Honda Element LX\u003cbr\u003e\n2007 Acura TSX Base\u003cbr\u003e\n2007 Honda Accord EX\u003cbr\u003e\n2007 Honda Accord EX-L\u003cbr\u003e\n2007 Honda Accord LX\u003cbr\u003e\n2007 Honda Accord Special Edition\u003cbr\u003e\n2007 Honda Accord Value Package\u003cbr\u003e\n2007 Honda Element EX\u003cbr\u003e\n2007 Honda Element LX\u003cbr\u003e\n2007 Honda Element SC\u003cbr\u003e\n2008 Acura TSX Base\u003cbr\u003e\n2008 Honda Element EX\u003cbr\u003e\n2008 Honda Element LX\u003cbr\u003e\n2008 Honda Element SC\u003cbr\u003e\n2009 Honda Element EX\u003cbr\u003e\n2009 Honda Element LX\u003cbr\u003e\n2009 Honda Element SC\u003cbr\u003e\n2010 Honda Element EX\u003cbr\u003e\n2010 Honda Element LX\u003cbr\u003e\n2010 Honda Element SC\u003cbr\u003e\n2011 Honda Element EX\u003cbr\u003e\n2011 Honda Element LX\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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