Carrillo SC7602-4 Forged Piston and Ring Kit Volkswagen Audi 1.8T 20V 82mm Bore

The CP-Carrillo SC7602-4 is a premium forged aluminum piston and ring kit engineered specifically for Volkswagen and Audi 1.8-liter turbocharged 20-valve engines. These forged aluminum pistons deliver additional strength, durability, and weight reduction—engineered for maximum power in high-performance and turbocharged applications.

Key Specifications:

• Bore: 82.0mm (3.228 inches) - +1.0mm oversized
• Compression Height: 1.287 inches (32.69mm)
• Compression Ratio: 8.5:1
• Rod Length: 144mm
• Wrist Pin Diameter: 0.787 inches (20mm)
• Piston Style: Dish with single valve relief
• Dome Volume: +10.1cc
• Piston Ring Thickness: 1.00mm x 1.20mm x 2.80mm

Performance Features:

• Deep valve reliefs to accommodate high lift camshafts
• Dual pin oilers providing double the amount of oil to the wrist pin
• Accumulator grooves that provide a small pocket for combustion gases to collect after the first ring, reducing ring flutter and providing a better seal
• Custom skirt cam and barrel design
• Fully CNC-machined and balanced to +/- 1 gram
• Pin lock grooves for easy lock removal
• Gas-nitrided steel top ring for enhanced durability
• Cast iron second ring for reliable sealing

• Wrist pins included at no additional charge
• Wrist pin retainers (locks)
• Complete piston ring set

This kit is designed for stock 86.4mm stroke engines and requires proper cylinder boring and honing to achieve the +1.0mm oversize specification. CP-Carrillo Pistons offers piston and ring kits for a variety of European and vintage cars, including many Volkswagen and Audi models from the 1990s and up, making this an ideal choice for performance engine builds, turbo upgrades, and engine rebuilds.