Wiseco K634M865 Professional Series Forged Racing Piston Set for Honda K20A, 86.50 mm Bore, 11.0:1 Compression Ratio

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. Wiseco Honda K20A Piston Set, 86.50 mm Bore, 30.00 mm Compression Height, 0.866 in. Pin Diameter, Sport Compact, Set of 4.

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• Precision ring grooves, anti-detonation groove, and additional ring seal improving features
• ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
• Designed and built to withstand heavy to severe duty performance applications
• Fully machined crown features
• Forced pin oiling

The Wiseco K634M865 Professional Series forged racing pistons are specifically engineered for high-performance Honda K20A engines, offering unmatched durability and precision for serious racing applications. Crafted in the USA from 2618 aluminum, these pistons provide exceptional tensile strength and heat resistance, making them ideal for heavy to severe duty race builds. The set includes four pistons, each with a 86.50 mm bore diameter, designed to deliver optimal power and reliability in demanding conditions. The fully machined crown and precision ring grooves ensure excellent sealing and combustion efficiency, while the anti-detonation groove minimizes knocking for consistent performance. Equipped with ArmorGlide skirt coating, these pistons resist seizure, reduce friction, and operate more quietly, extending component lifespan and maintaining engine integrity during intense racing sessions. The pistons feature a 30.00 mm compression height and a 0.866-inch wrist pin diameter, with forced pin oiling to ensure proper lubrication during high-stress operation. Built to withstand the rigors of competitive racing, these pistons are an excellent choice for builders seeking top-tier components that do not compromise on strength or performance. Please note that these pistons are not CARB-approved and require acknowledgment of this status prior to purchase. Engineered for performance, the Wiseco Professional Series pistons help remove limits and push your Honda K20A engine to new heights of power and durability.

Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength

• Precision ring grooves, anti-detonation groove, and additional ring seal improving features

• ArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation

• Designed and built to withstand heavy to severe duty performance applications

• Fully machined crown features for optimal combustion chamber sealing

• Forced pin oiling for reliable lubrication during high-performance use

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1