Wiseco K613M835 Forged Piston Kit for 1986-1992 Toyota Supra 7M-GTE I6

Vehicle Fitment

• 1986-1992 Toyota Supra (7M-GTE, 3.0 L I6, turbo)

Features

• Forged 2618 aluminum construction for high strength
• ArmorGlide® low-friction skirt coating
• Strutted forging design to increase rigidity
• Precision ring grooves for optimal sealing
• Dished piston crown (-16 cc) for proper compression
• Floating / press-fit 22 mm wrist pin
• Includes performance ring set (steel / nitrided)
• Designed for high-RPM and forced induction applications

Specifications

• Bore: 83.50 mm
• Stroke: 91 mm
• Compression Height: 33.00 mm
• Compression Ratio: ~9.1:1
• Piston weight: ~322 g
• Piston volume: -16 cc (dished crown)
• Wrist Pin Diameter: 22 mm
• Ring Groove Sizes: 1.0 / 1.2 / 2.8 mm
• Included Ring Set: 8350XX
• Block Height: 230.5 mm

Included Components

• 6x forged pistons
• 6x wrist pins (22 mm)
• Ring set (8350XX)
• Circlips / locks for pins

Product Description

The Wiseco K613M835 piston kit is designed for the Toyota 7M-GTE 3.0 L turbo inline-6 found in Supras from 1986 to 1992. Forged from high-strength 2618 aluminum, these pistons are ideal for high-performance and forced-induction builds. The dished crown design (-16 cc) ensures proper compression when paired with stock or upgraded heads.

ArmorGlide® skirt coating and strutted design reduce friction and improve stability under load. Precision ring grooves, along with the included performance ring set, provide excellent sealing and durability. The 22 mm wrist pins are optimized for performance applications, either press-fit or floating.

This kit is suitable for builders seeking race-capable components that maintain daily drivability. Ideal for full engine rebuilds, turbo upgrades, or high-RPM motors. Proper installation including clearances, torque sequence, and ring gap checking is recommended to ensure peak performance and longevity.