Fits Honda B-Series engines with 4-valve heads and an 84.00mm bore.

Designed for severe-duty race builds, this Wiseco Professional Series piston kit is engineered for engines that demand no-compromise durability. Forged and machined in the USA from 2618 aluminum alloy, these pistons provide the high tensile strength necessary for high-boost or high-compression environments. The strutted forging design minimizes weight while maximizing structural integrity under extreme loads.

• Manufacturer Part Number: K594M84AP
• Material: Forged 2618 aluminum for improved tensile strength
• Bore Diameter: 84.00mm
• Dome Volume: +8.25cc
• Coating: ArmorGlide skirt coating for reduced friction and seizure resistance
• Pin Oiling: Forced pin oiling for improved lubrication and cooler operation
• Grooves: Precision ring grooves and anti-detonation grooves for superior ring seal
• Includes: Premium ring set, wrist pins, and locks

Designed for high-output race builds, the Wiseco Professional Series Piston Kit for Honda and Acura B-Series 4-valve engines provides the durability required for severe-duty applications. These pistons are forged and precision-machined in the USA from 2618 aluminum alloy, offering the superior tensile strength necessary for high-compression or forced-induction environments. This kit features a strutted forging for increased rigidity and a +8.25cc dome volume to optimize performance.

• Forged from 2618 aluminum for maximum strength under high cylinder pressures
• ArmorGlide skirt coating reduces friction, resists seizure, and ensures quieter operation
• Precision-machined ring grooves and anti-detonation grooves for superior ring seal
• Fully machined crown with forced pin oiling for enhanced wrist pin lubrication
• Includes premium piston rings and high-strength wrist pins
• Manufacturer Part Number: K594M845AP

Wiseco Professional Series forged racing pistons are engineered for high-output Honda and Acura B-Series 4-valve engines. Machined in the USA from 2618 aluminum alloy, these pistons provide the increased tensile strength and fatigue resistance required for heavy to severe duty racing applications.

• 2618 Forged Aluminum: High-strength alloy designed to withstand the thermal and mechanical loads of forced induction and high-compression builds.
• ArmorGlide Skirt Coating: Specialized coating reduces friction and improves seizure resistance for quieter operation and extended bore life.
• Precision Machining: Features a fully machined crown, anti-detonation grooves, and precision ring grooves for an optimized combustion seal.
• Enhanced Lubrication: Forced pin oiling ensures the wrist pin receives constant lubrication under high RPM conditions.
• Kit Specifics: Strutted skirt design with a +8.25cc dome volume and 82.00mm bore.
• Included: Professional Series pistons and premium ring set.

Manufacturer Part Number: K593M82AP

Engineered for high-output Honda B-Series 4-valve engines, the Wiseco Professional Series Forged Piston Kit is designed for severe-duty racing applications. These pistons are forged from 2618 aluminum alloy to provide superior tensile strength and durability under high-stress conditions. Each piston features Wiseco’s ArmorGlide skirt coating to reduce friction, minimize noise, and provide exceptional seizure resistance during extreme operation.

• Material: Forged from high-strength 2618 aluminum alloy for maximum durability.
• ArmorGlide Skirt Coating: Reduces friction and wear while ensuring quieter operation.
• Precision Machining: Features fully machined crowns and forced pin oiling for improved lubrication.
• Enhanced Sealing: Precision-cut ring grooves with an anti-detonation groove to improve ring seal and protect the top land.
• Specifications: 81.00mm bore with a +8.25cc dome volume and strutted forging design.
• MPN: K593M81AP
• Included: Complete set with premium rings and wrist pins.

Fits 1994-2005 Mazda Miata and 1999-2000 Mazda Protege (1.8L).

Engineered for high-performance builds and severe-duty racing, this Wiseco Professional Series forged piston kit provides the strength and precision required by serious engine builders. These pistons are machined from 2618 aluminum alloy to offer superior tensile strength under extreme combustion pressures. Each piston features Wiseco’s proprietary ArmorGlide skirt coating to reduce friction, minimize skirt wear, and ensure quieter operation during thermal expansion.

This shelf-stock kit includes premium piston rings and features forced pin oiling for improved lubrication at high RPMs. The precision-machined crowns and anti-detonation grooves are specifically designed to optimize ring seal and protect against the rigors of competitive use.

• Manufacturer Part Number: K590M84
• Bore Size: 84.0mm
• Compression Ratio: 10.5:1
• Material: Forged 2618 Aluminum
• Coating: ArmorGlide Skirt Coating
• Key Features: Forced pin oiling, anti-detonation grooves, and fully machined crowns
• Included: Forged pistons, premium ring set, and wrist pins

Fits 1994-2005 Mazda Miata and 1999-2000 Mazda Protege (1.8L).

Wiseco Professional Series forged racing pistons are engineered for high-performance builds requiring extreme durability. Machined in the USA from 2618 aluminum alloy for superior tensile strength, these pistons are designed to handle the increased heat and cylinder pressures of severe-duty racing. Each piston features Wiseco’s proprietary ArmorGlide skirt coating to reduce friction, minimize wear, and ensure quieter operation during startup and high-load cycles.

This kit includes precision-machined ring grooves and an anti-detonation groove to improve ring seal and protect the crown from combustion pressure spikes. Forced pin oiling ensures the wrist pins remain lubricated under high RPMs, extending the life of the rotating assembly in professional-grade builds.

• Manufacturer Part Number: K590M835
• Bore Size: 83.5mm
• Compression Ratio: 10.5:1
• Material: 2618 Forged Aluminum
• Coating: ArmorGlide Skirt Coating
• Features: Forced pin oiling, fully machined crown, and precision ring grooves
• Included: Premium rings and wrist pins

Engineered for high-performance Subaru WRX engine builds, the Wiseco Professional Series Forged Piston Kit delivers the structural integrity required for heavy to severe duty racing applications. These pistons are forged and machined in the USA from high-tensile 2618 aluminum alloy, providing the superior temperature resistance and strength necessary for high-boost forced induction environments.

This kit features a 4v R/Dome design and 92mm bore to achieve an 8.4:1 compression ratio. To ensure long-term reliability under extreme cylinder pressures, Wiseco includes precision-machined anti-detonation grooves and forced pin oiling for consistent wrist pin lubrication. The piston skirts are treated with ArmorGlide coating to reduce friction and mechanical noise while preventing scuffing during high-load operation.

• Part Number: K588M92AP
• Bore Size: 92mm
• Compression Ratio: 8.4:1
• Material: 2618 Forged Aluminum
• Coating: ArmorGlide Skirt Coating
• Design: 4v R/Dome with fully machined crowns
• Includes: Premium piston rings and wrist pins

Designed for high-output competition and severe-duty racing, the Wiseco Professional Series Piston Kit fits Subaru WRX 4V engines. These pistons are precision-machined from 2618 aluminum alloy to ensure high tensile strength and durability under the extreme cylinder pressures of turbocharged applications. Featuring a 92.5mm bore and an 8.4:1 compression ratio, this kit (MPN K588M925AP) provides a robust foundation for serious performance builds.

• Forged from 2618 aluminum for superior strength and heat resistance
• ArmorGlide skirt coating reduces friction and minimizes cylinder wear for quieter operation
• Forced pin oiling ensures consistent lubrication to the wrist pin
• Anti-detonation grooves help maintain ring seal and protect the ring land under high boost
• Fully machined crown features for optimized combustion efficiency
• Includes premium rings for a precision seal

Fits 1995-1998 Nissan 240SX with KA24 engines.

Wiseco Professional Series forged racing pistons (MPN: K587M90) are engineered for high-output builds where durability is non-negotiable. Forged from 2618 aluminum alloy, these pistons provide the high-tensile strength required for heavy to severe-duty performance applications. Each piston features Wiseco’s ArmorGlide skirt coating to reduce friction, minimize operating noise, and prevent seizure under extreme thermal loads.

This kit is precision-machined in the USA, featuring forced pin oiling and anti-detonation grooves to ensure superior ring seal and component longevity. The fully machined crowns and specific dished profile are designed to achieve a 10.5:1 compression ratio at a 90.0mm bore size.

• Forged from 2618 aluminum for maximum strength
• ArmorGlide skirt coating reduces friction and improves wear resistance
• Precision-machined ring grooves and anti-detonation grooves
• Forced pin oiling for enhanced wrist pin lubrication
• Includes premium rings for a complete installation
• Bore: 90.0mm | Compression Ratio: 10.5:1

Fits 1995-1998 Nissan 240SX Base, LE, and SE models equipped with the KA24 engine.

Wiseco Professional Series forged pistons are engineered for high-stress racing environments where durability and tight tolerances are critical. Machined in the USA from 2618 forged aluminum, these pistons offer superior tensile strength compared to cast or standard alloy alternatives, making them ideal for heavy-duty race builds. Each piston features ArmorGlide skirt coating to reduce friction, minimize noise, and prevent seizure during extreme operation.

This comprehensive kit includes premium rings and is designed with advanced features such as forced pin oiling and anti-detonation grooves to improve ring seal and longevity under high-load conditions.

• Manufacturer Part Number: K587M895
• Bore Diameter: 89.5mm
• Compression Ratio: 10.6:1
• Piston Material: 2618 Forged Aluminum
• Skirt Coating: ArmorGlide for reduced friction and wear
• Design: Fully machined dhed crown with forced pin oiling
• Includes precision ring grooves and premium piston rings

Fits 1995-1998 Nissan 240SX Base, LE, and SE models with the KA24 engine.

Wiseco Professional Series forged racing pistons are engineered for high-performance builds where tensile strength and durability are critical. Machined from 2618 aluminum alloy, these pistons are designed to withstand the increased thermal and mechanical loads of heavy-duty race applications. Each piston features ArmorGlide skirt coating to reduce friction, minimize noise, and provide superior seizure resistance during high-load operation.

• Precision-machined from 2618 forged aluminum for maximum strength
• ArmorGlide skirt coating reduces friction and improves wear resistance
• Dished crown design achieves a 10.5:1 compression ratio
• Forced pin oiling ensures consistent lubrication to the wrist pin
• Includes premium ring set and anti-detonation grooves for improved ring seal
• Bore size: 89.0mm
• Manufacturer Part Number: K587M89

Designed for high-output Nissan KA24 engine builds, this Wiseco Professional Series Piston Kit features a dished design with a 9:1 compression ratio and a 90mm bore. Forged and precision-machined in the USA from 2618 aluminum alloy, these pistons provide the high tensile strength required for severe-duty racing and forced induction applications.

Each piston is treated with Wiseco's proprietary ArmorGlide skirt coating to reduce friction, prevent seizure, and ensure quieter operation within the cylinder. The design incorporates precision-machined ring grooves, an anti-detonation groove to protect the top ring land, and forced pin oiling for superior wrist pin lubrication. This complete kit (MPN: K586M90AP) is engineered to withstand heavy-duty performance and includes premium piston rings.

• Forged from 2618 aluminum alloy for maximum tensile strength
• ArmorGlide skirt coating reduces friction and improves wear resistance
• 90mm bore diameter with a 9:1 compression ratio
• Includes precision-matched premium piston rings
• Features forced pin oiling and anti-detonation grooves
• Fully machined crown for consistent displacement
• Manufacturer Part Number: K586M90AP

Fits 1995-1998 Nissan 240SX Base, LE, and SE (KA24 engine).

Wiseco Professional Series forged racing pistons are engineered for serious builders and high-horsepower applications. Machined in the USA from high-tensile 2618 aluminum alloy, these dished pistons are designed to withstand the thermal and mechanical stresses of heavy to severe-duty race builds. Each kit features precision-machined crowns and ring grooves for maximum sealing and durability.

• ArmorGlide Skirt Coating: Minimizes friction and reduces skirt wear while providing quieter engine operation and seizure resistance.
• 2618 Forged Aluminum: Offers superior tensile strength compared to standard alloys, making it ideal for forced induction or high-load builds.
• Forced Pin Oiling: Improves lubrication at the wrist pin to prevent galling and extend component life under racing conditions.
• Advanced Ring Seal: Includes precision ring grooves and an anti-detonation groove to maintain compression and protect the ring land.

Technical Specifications:

• Bore Size: 90mm
• Compression Ratio: 9:1
• Piston Material: 2618 Forged Aluminum
• Piston Style: Dished
• Manufacturer Part Number: K586M90
• Includes: Premium piston rings and wrist pins

This Wiseco Professional Series forged piston kit is engineered for Nissan KA24 engines undergoing high-performance or heavy-duty racing builds. Machined in the USA from 2618 aluminum alloy, these pistons provide the high tensile strength required for severe-duty applications where standard castings cannot survive. The dished crown design achieves a 9.0:1 compression ratio, making them ideal for forced induction or high-pressure street builds.

Each piston features Wiseco's proprietary ArmorGlide skirt coating to reduce friction, minimize cylinder wall wear, and ensure quieter operation. The design includes precision-machined ring grooves and anti-detonation grooves to optimize ring seal and protect the land area under high cylinder pressures.

• Fits Nissan KA24 engines
• Bore Size: 89.0mm
• Compression Ratio: 9.0:1
• Material: 2618 Forged Aluminum Alloy
• ArmorGlide skirt coating for reduced friction and seizure resistance
• Forced pin oiling for enhanced wrist pin lubrication
• Includes premium rings, wrist pins, and circlips
• Manufacturer Part Number: K586M89AP

Fits Nissan KA24 engines.

Wiseco Professional Series forged racing pistons are engineered for high-performance builds and severe-duty racing applications. Forged and machined in the USA from 2618 aluminum alloy, these pistons provide the increased tensile strength required for high-stress environments. This kit features a dished crown design to achieve a 9:1 compression ratio at an 89.5mm bore size.

Every piston includes Wiseco’s proprietary ArmorGlide skirt coating to reduce friction, minimize noise, and prevent seizure under extreme heat. Precision-machined ring grooves and anti-detonation grooves enhance ring seal and protect the land area from pressure spikes. The forced pin oiling system ensures consistent lubrication at the wrist pin for long-term reliability under load.

• Manufacturer Part Number: K586M895AP
• Material: 2618 Forged Aluminum
• Bore Size: 89.5mm
• Compression Ratio: 9:1
• Crown Shape: Dished
• ArmorGlide skirt coating for friction reduction
• Precision-machined anti-detonation grooves
• Forced pin oiling for wrist pin lubrication
• Includes premium rings and hardware

Fits 1995-1998 Nissan 240SX (KA24DE) including Base, LE, and SE models.

Wiseco Professional Series forged racing pistons are engineered for the extreme demands of heavy to severe duty racing builds. Machined in the USA from high-tensile 2618 aluminum, this shelf stock kit (K586M895) provides the thermal stability and structural integrity required for high-horsepower Nissan KA24 builds. Each piston features a fully machined crown and ArmorGlide skirt coating to minimize friction, reduce noise, and prevent scuffing under high cylinder pressures.

• Material: Forged 2618 Aluminum for superior strength-to-weight ratio.
• Bore Size: 89.5mm.
• Compression Ratio: 9.1:1.
• ArmorGlide Skirt Coating: Reduces friction and protects against seizure.
• Forced Pin Oiling: Ensures consistent lubrication for the wrist pins.
• Anti-Detonation Grooves: Improves ring seal and protects the top ring from pressure spikes.
• Included Hardware: Premium piston rings and wrist pins.

Fits select 1995-2005 Dodge Neon and Stratus, Mitsubishi Eclipse, Eagle Talon, and Plymouth Neon and Breeze. This Wiseco Professional Series forged piston kit is engineered for serious racers and engine builders managing heavy to severe duty turbo applications. These pistons are machined from high-tensile 2618 aluminum alloy to withstand the thermal and mechanical stresses of high-boost environments.

Each kit features precision-machined crown details and ring grooves designed to maximize seal and prevent detonation under pressure. The included ArmorGlide skirt coating reduces friction and noise while improving seizure resistance during extreme operation. Forced pin oiling ensures the wrist pins remain lubricated under high loads, extending the life of your rotating assembly.

• Manufacturer Part Number: K580M88
• Compression Ratio: 8.8:1 (Turbo applications)
• Bore Size: 88.0mm
• Compression Height: 1.236in
• Material: 2618 Forged Aluminum
• ArmorGlide skirt coating for reduced friction and wear
• Anti-detonation grooves and precision ring seal features
• Includes premium piston rings and forced pin oiling

Fits select 1993-1998 Subaru Impreza models (Base, Brighton, L, LS, LX, Outback, RS) utilizing an EJ20 stroker configuration.

Wiseco Professional Series forged racing pistons are engineered for high-output competition and severe-duty engine builds. These pistons are precision-machined from 2618 aluminum alloy, providing the high tensile strength required for extreme cylinder pressures and temperatures. Designed specifically for EJ20 stroker applications, this kit features a 1.181-inch compression height and includes premium rings for superior sealing and longevity.

Each piston is finished with Wiseco's proprietary ArmorGlide skirt coating to reduce friction, minimize noise, and prevent scuffing or seizure during high-RPM operation. With forced pin oiling and fully machined crowns, these pistons offer the durability needed for professional-grade Subaru race builds.

• Manufacturer Part Number: K579M93
• Material: Forged 2618 Aluminum Alloy
• Compression Height: 1.181 in
• Coating: ArmorGlide Skirt Coating for reduced friction
• Hardware: Includes premium piston rings and forced pin oiling
• Application: EJ20 Stroker engine builds
• Features: Precision-machined ring grooves and anti-detonation grooves

Engineered for high-output racing and severe duty applications, the Wiseco Professional Series Piston Kit for Acura 4v engines is built to withstand the rigors of competitive motorsport. These pistons are forged from 2618 aluminum alloy, providing the high tensile strength required for extreme cylinder pressures. The strutted forging design maximizes strength-to-weight ratio, ensuring durability without unnecessary reciprocating mass.

This kit features Wiseco's ArmorGlide skirt coating, which reduces friction, minimizes seizure risk, and provides quieter operation during engine cycles. To ensure reliable performance under boost or high RPM, the pistons include forced pin oiling for superior lubrication and anti-detonation grooves to protect the ring pack. Each set comes complete with premium rings and high-quality hardware for a professional-grade build.

• Forged from 2618 aluminum for maximum tensile strength and durability
• ArmorGlide skirt coating reduces friction and improves wear resistance
• Strutted forging design for optimized structural integrity
• Fully machined crowns with a +8cc domed profile
• Precision-machined ring grooves and anti-detonation grooves
• Forced pin oiling for consistent wrist pin lubrication
• Includes premium piston rings and hardware
• Manufacturer Part Number: K573M88AP
• Bore Size: 88.0mm

Fits select 2002-2011 Acura RSX and TSX, and Honda Accord, CR-V, and Element.

Wiseco Professional Series forged racing pistons are engineered for high-output engine builds where durability is non-negotiable. Machined in the USA from 2618 aluminum alloy, these pistons provide the superior tensile strength required for heavy to severe-duty competition. This strutted domed kit features an 88.0mm bore and +8cc dome volume, optimized for 4-valve cylinder heads to maximize compression and combustion efficiency.

• Forged 2618 Aluminum: High-strength alloy designed to withstand extreme cylinder pressures and thermal loads.
• ArmorGlide Skirt Coating: Permanent dry film lubricant that reduces friction, prevents seizure, and ensures quieter piston operation.
• Precision Ring Seal: Features precision-machined ring grooves and anti-detonation grooves to maintain seal integrity under boost or high RPM.
• Forced Pin Oiling: Specialized oiling passages ensure the wrist pin receives constant lubrication for reduced wear.
• Complete Kit: Includes premium piston rings and high-quality wrist pins for a comprehensive installation.
• Manufacturer Part Number: K573M88

Engineered for high-performance racing builds, the Wiseco Professional Series piston kit provides the durability required for heavy to severe duty applications. These pistons are forged and machined in the USA from 2618 aluminum alloy to ensure high tensile strength and structural integrity under extreme thermal and mechanical loads. Designed for Acura 4-valve engines, this kit features an 87.0mm bore and a +8cc domed, strutted forging design.

To ensure long-term reliability, each piston is treated with Wiseco's ArmorGlide skirt coating, which reduces friction and noise while providing seizure resistance. The precision-machined ring grooves and anti-detonation grooves work in tandem with forced pin oiling to maintain superior ring seal and lubrication during high-RPM operation.

• Forged from high-tensile 2618 aluminum for maximum strength
• ArmorGlide skirt coating for reduced friction and quieter operation
• Strutted forging design for enhanced structural rigidity
• Precision-machined anti-detonation and ring grooves
• Forced wrist pin oiling for improved lubrication
• Bore: 87.0mm
• Dome Volume: +8cc
• Includes premium piston rings
• Manufacturer Part Number: K573M87AP

Designed for high-output racing builds, this Wiseco Professional Series Piston Kit fits select Acura 4-valve engines. These pistons are engineered for builders who require maximum durability and performance under severe duty conditions, providing a high-strength solution for heavy competition use.

Each piston is forged and precision-machined in the USA from 2618 aluminum alloy, chosen for its superior tensile strength and fatigue resistance at high temperatures. The strutted forging design minimizes weight while maintaining structural integrity. Forged pin oiling ensures constant lubrication to the wrist pin, while the ArmorGlide skirt coating reduces friction and prevents seizure for quieter, more efficient operation.

• Bore Size: 86.5mm
• Dome Volume: +8cc
• Material: 2618 Forged Aluminum
• Design: Strutted forging with fully machined crown
• Coating: ArmorGlide skirt coating for friction reduction
• Features: Precision ring grooves, anti-detonation groove, and forced pin oiling
• Included: Premium piston rings and wrist pins
• Manufacturer Part Number: K573M865AP

Fits 1993-2001 Honda Prelude (Base, SE, Si, Type SH, and VTEC).

Wiseco Professional Series forged racing pistons are engineered for the specific demands of high-performance H-series engine builds. Machined in the USA from 2618 aluminum alloy, these pistons offer superior tensile strength and thermal stability under the extreme cylinder pressures of racing environments. The strutted forging design enhances structural rigidity, while the +6.5cc dome profile is optimized for 4-valve cylinder heads to achieve precision compression ratios.

Each piston features Wiseco’s ArmorGlide skirt coating to reduce friction, prevent seizure, and ensure quieter operation. This shelf stock kit includes premium rings and is designed for builders who require custom-level durability in a ready-to-install package.

• Bore Size: 87mm
• Dome Volume: +6.5cc
• Material: 2618 Forged Aluminum alloy
• Strutted forging for maximum strength-to-weight ratio
• ArmorGlide skirt coating for reduced friction and wear
• Precision-machined ring grooves and anti-detonation grooves
• Forced pin oiling for reliable wrist pin lubrication
• Manufacturer Part Number: K572M87

Fits select 2002-2011 Acura RSX, TSX and Honda Accord, CR-V, and Element. These Wiseco Professional Series forged racing pistons are engineered for high-performance builds where durability and thermal stability are critical. Machined in the USA from high-tensile 2618 aluminum, these strutted pistons feature a -9cc dish volume and are designed to withstand the stresses of heavy-duty race applications.

• Manufacturer Part Number: K568M88
• Bore Size: 88.0mm
• Dish Volume: -9cc
• Material: Forged 2618 Aluminum for superior tensile strength
• ArmorGlide Skirt Coating: Reduces friction and noise while improving seizure resistance
• Precision Features: Anti-detonation grooves and precision-machined ring grooves for improved seal
• Lubrication: Forced pin oiling for enhanced wrist pin life
• Included: Premium piston rings and high-quality hardware

Built for serious engine builders, this kit provides a complete piston solution for Honda K-series platforms requiring a strutted forging and specialized coating for severe duty use.

Fits select 2002-2011 Acura RSX, TSX and Honda Accord, CR-V, Element.

Wiseco Professional Series forged racing pistons are engineered for engine builders and racers who demand no-compromise durability. Machined in the USA from 2618 aluminum for superior tensile strength, these pistons are designed to withstand the thermal and mechanical stresses of heavy to severe duty racing applications. The strutted forging provides a high strength-to-weight ratio, ensuring structural integrity without unnecessary mass.

Every kit includes ArmorGlide skirt coating to reduce friction, minimize noise, and provide seizure resistance during extreme operation. With forced pin oiling and precision-machined crown features, these pistons deliver the consistent ring seal and oil control required for high-performance builds. The kit comes complete with premium rings to ensure your engine is sealed for maximum power output.

• Manufacturer Part Number: K568M875
• Bore Diameter: 87.5mm
• Piston Volume: -9cc
• Forging Style: Strutted
• Material: 2618 Forged Aluminum
• Coating: ArmorGlide Skirt Coating
• Includes: Premium ring set and forced pin oiling
• Features: Anti-detonation grooves and fully machined crowns

Fits select 2002-2011 Acura RSX, TSX and Honda Accord, CR-V, and Element models.

Wiseco Professional Series forged racing pistons are engineered for high-output engine builds where durability and performance are critical. Forged from high-strength 2618 aluminum, these pistons feature a strutted design to provide maximum structural integrity under the extreme pressures of heavy to severe duty racing. Each piston is precision machined with forced pin oiling and a fully machined crown to ensure consistent combustion and reliable operation.

To minimize friction and prevent skirt seizure, these pistons come standard with Wiseco’s proprietary ArmorGlide skirt coating. This treatment also contributes to quieter operation and improved wear resistance over the life of the engine. The kit include premium rings and precision-machined grooves to maintain a superior seal under high-load conditions.

• Forged from 2618 aluminum for superior tensile strength
• 87.0mm bore size with a -9cc dish volume
• ArmorGlide skirt coating reduces friction and improves scuff resistance
• Strutted forging design for enhanced structural rigidity
• Forced pin oiling for improved wrist pin lubrication
• Includes premium ring set and hardware
• Manufacturer Part Number: K568M87

Wiseco Professional Series forged racing pistons are engineered for high-output Acura 4-valve engine builds where structural integrity and performance are critical. Forged and machined in the USA from 2618 aluminum alloy, these pistons provide the increased tensile strength required for high-boost or high-compression race applications.

This kit features a strutted forging design to maximize rigidity while minimizing reciprocating weight. The 84.0mm pistons include a +2cc dome profile and are finished with Wiseco's ArmorGlide skirt coating to reduce friction, minimize wear, and provide quieter operation. To ensure reliable performance under extreme thermal loads, the pistons incorporate forced pin oiling and precision-machined anti-detonation grooves to protect the ring land area.

• Forged from high-strength 2618 aluminum alloy for severe-duty use
• 84.0mm bore size with +2cc dome volume
• Strutted forging design for superior structural support
• ArmorGlide skirt coating reduces friction and protects against seizure
• Forced pin oiling for enhanced wrist pin lubrication
• Precision-machined ring grooves with anti-detonation protection
• Includes premium piston rings and high-quality wrist pins
• Manufacturer Part Number: K567M84AP

Engineered for high-performance racing applications, this Wiseco Professional Series forged piston kit is designed for Acura 4-valve engines. These pistons are machined in the USA from 2618 forged aluminum alloy to provide the superior tensile strength required for severe-duty builds and forced induction or high-compression environments.

This kit features Wiseco's proprietary ArmorGlide skirt coating to minimize friction, reduce wear, and provide quieter operation during cold starts. The strutted forging design optimizes the strength-to-weight ratio, allowing the piston to withstand high cylinder pressures without unnecessary mass.

• Manufacturer Part Number: K567M845AP
• Bore Size: 84.5mm
• Dome Volume: +2cc
• Material: Forged 2618 Aluminum
• Coating: ArmorGlide Skirt Coating
• Features: Anti-detonation grooves and precision-machined ring grooves
• Lubrication: Forced pin oiling for enhanced wrist pin durability
• Includes: Premium piston rings and wrist pins

Fits select Acura 4V engines with an 81.0mm bore size. Engineered for serious racing and heavy-duty engine builds.

Wiseco Professional Series pistons are forged and machined in the USA from high-strength 2618 aluminum alloy, offering the superior tensile strength necessary for severe-duty applications. This kit features a strutted forging design for maximum rigidity and weight optimization, allowing the rotating assembly to withstand high cylinder pressures. The pistons are treated with proprietary ArmorGlide skirt coating to reduce friction, minimize noise, and prevent scuffing or seizure during high-stress operation.

To ensure long-term reliability, these pistons include forced pin oiling for consistent wrist pin lubrication and anti-detonation grooves to maintain ring seal integrity. Each crown is fully machined for precise compression control and valve clearance.

• Material: Forged 2618 Aluminum
• Bore Size: 81.0mm
• Dome Volume: +5cc
• Design: Strutted forging for increased rigidity
• Coating: ArmorGlide skirt coating
• Additional Features: Forced pin oiling, precision ring grooves, anti-detonation groove
• Manufacturer Part Number: K566M81AP

Engineered for high-performance race builds, this Wiseco Professional Series piston kit is designed specifically for select Acura 4V engines. These pistons are forged and machined in the USA from 2618 aluminum alloy, providing the high tensile strength required for heavy to severe duty applications where combustion pressures and temperatures are extreme.

This strutted piston design features a +5cc dome volume and an 81.5mm bore. Each piston is treated with Wiseco's proprietary ArmorGlide skirt coating to reduce friction, minimize noise, and provide superior resistance to seizure. The kit includes premium rings and is engineered with forced pin oiling to ensure reliable lubrication under high-load conditions.

• Material: Forged 2618 aluminum for maximum durability
• Bore Size: 81.5mm
• Dome Volume: +5cc
• Coating: ArmorGlide skirt coating for reduced friction and wear
• Design: Strutted forging with fully machined crown and anti-detonation grooves
• Lube: Forced pin oiling for consistent wrist pin lubrication
• Included: High-performance ring set
• MPN: K566M815AP