TOMEI TA202A-TY03B Forged Piston Kit 87.00mm CH29.50 (3.6) for 2JZ-GTE Engine

Description TOMEI TA202A-TY03B Forged Piston Kit 87.00mm CH29.50 (3.6) for 2JZ-GTE Engine

The TOMEI TA202A-TY03B Forged Piston Kit is designed for high-performance and motorsport applications based on the TOYOTA Supra Mk4 engine platform. Manufactured using a high-strength forging process, these pistons are engineered to withstand elevated combustion pressures while reducing reciprocating mass for improved engine response and durability.

Constructed from A4032 forged aluminum alloy, the pistons feature a lightweight yet rigid design achieved through optimized wall thickness and dedicated forging blanks. The 3D-profiled oval barrel shape is calculated to provide optimal piston-to-cylinder clearance throughout operating temperatures, promoting smooth piston movement and stable performance.

The pistons are designed to accommodate 1 mm oversized valves through specially shaped valve reliefs and utilize thin piston rings to reduce friction losses. Each kit includes piston pins, circlips, and piston rings specifically matched to the application.

• High-strength forged piston construction
• Designed for high-performance and motorsport engines
• A4032 forged aluminum alloy material
• Lightweight and high-rigidity design
• 3D-profile oval barrel piston shape
• Optimized thermal expansion characteristics
• Compatible with 1 mm oversized valves
• Reduced friction through thin piston ring design
• Includes piston pins, circlips, and piston rings
• Designed to withstand increased combustion pressures

Specifications:

• Bore Diameter: 87.00 mm (OEM +1.0 mm)
• Compression Height: 29.50 mm (OEM -4.5 mm)
• Piston Volume: -22.6 cc
• Piston Material: A4032 forged aluminum
• Piston Weight: 278.5 g
• Pin Diameter: 22.0 mm
• Pin Length: 60.0 mm
• Pin Weight: 121.5 g
• Total Weight: 400.0 g
• Circlip Inner Diameter: 22.0 mm
• Valve Relief: Yes
• Top Ring Size: 1.20 x 3.05 mm
• Second Ring Size: 1.20 x 3.90 mm
• Oil Ring Size: 2.50 x 2.95 mm