Wiseco K550M8625AP 2JZ-GTE Forged Piston Kit 86.25mm Bore -14.8cc Set

Vehicle Fitment

• Fits Toyota engines using 2JZ-GTE 3.0L DOHC 24 V turbo platforms (e.g., Supra Mk IV, Aristo, Soarer, Lexus SC300/GS300 with 2JZ-GTE engines)

Features

• Professional Series forged piston set engineered for high-output engines
• Full-round 2618 aluminum forging for outstanding strength under race and boosted conditions
• ArmorGlide® skirt coating reduces friction and improves durability
• Precision-machined crown and ring grooves for consistent sealing and performance
• Anti-detonation groove and enhanced sealing features for severe duty applications
• Floating wrist pins and premium piston rings included
• Designed to withstand heavy-duty street, race, and turbocharged operation
• Compression volume tuned to ~-14.8 cc (dish piston design) for lower static compression ratio suits forced induction

Specifications

• Part Number: K550M8625AP (Wiseco forged piston kit)
• Bore Diameter: 86.25 mm (3.396")
• Compression Height: 34.00 mm (1.338")
• Piston Volume: -14.80 cc (dish top)
• Material: 2618 aluminum forging
• Ring Set Included: Yes (premium set)
• Wrist Pins: 0.866" (22 mm) floating
• Piston Count: 6 (complete inline-six set)

Included Components

• 6x Forged pistons (Wiseco K550M8625AP)
• 6x Premium piston ring sets
• 6x Floating wrist pins and retainers

Product Description

The Wiseco K550M8625AP piston kit is a high-performance forged piston set tailored for Toyota's 2JZ-GTE 3.0 L twin-turbo inline-six engines - common in Supra Mk IV, Aristo, Soarer, and Lexus platforms. These pistons are manufactured from high-strength 2618 aluminum and are fully machined to precise tolerances, making them suitable for heavy-duty street and race builds where power levels exceed stock capabilities. Their dish design with a -14.8 cc combustion chamber volume helps achieve a conservative compression ratio around ~8.3:1, ideal for boosted applications that require reduced static compression.

Wiseco's Professional Series pistons include ArmorGlide® friction-reducing skirt coating, precision ring grooves, and anti-detonation features. Each piston comes complete with a premium ring set and floating wrist pins for reliable operation under high lp pressure and elevated engine speeds. Engine builders use this kit when increasing output through turbo upgrades, higher boost, and improved fueling systems - ensuring durability and enhanced performance compared to cast-type pistons.