Carrillo SC7403-4 Forged Piston and Ring Set 86.5mm Bore 9.0:1 CR for Subaru FA20 Toyota 4U-GSE

The Carrillo SC7403-4 is a complete forged piston and ring set engineered for Subaru FA20 and Toyota 4U-GSE engines, featuring an 86.5mm bore size with a 9.0:1 compression ratio. This set includes four flat-top pistons with 22mm wrist pins, designed to deliver exceptional strength and performance in turbocharged, supercharged, and nitrous applications.

Key Specifications:

• Bore Size: 86.5mm (+0.5mm oversize)
• Compression Ratio: 9.0:1
• Wrist Pin Size: 22mm
• Material: 2618 Aluminum Forging
• Piston Design: Flat-top
• Ring Package: 1.0mm x 1.2mm x 2.8mm
• Complete Set: 4 Pistons, 4 Wrist Pins, 4 Ring Sets

Features and Benefits:

• Compatible with oversized valves and high lift camshafts
• Engineered for maximum power output
• Precision-forged from race-proven 2618 aluminum alloy for superior strength and heat resistance
• Ideal for forced induction and high-performance naturally aspirated builds
• Designed for Subaru BRZ, Scion FR-S, and Toyota GT86 performance applications

This product is not CARB legal and not for sale in California. Wrist pin locks are not included; stock OEM Subaru locks can be used.