Carrillo SC7421-4 Forged Piston and Ring Set 100mm Bore 8.2:1 CR

The Carrillo SC7421-4 is a high-performance forged piston and ring set engineered for demanding applications. This complete set includes four pistons with matching rings, designed with precision CNC machining and manufactured in the USA to exacting standards.

Key Specifications:

• Bore: 100mm (3.937 inches) - +0.5mm oversize
• Compression Ratio: 8.2:1
• Compression Height: 30.68mm (1.208 inches)
• Pin Diameter: 23mm (0.905 inches)
• Rod Length: 130.5mm
• Piston Weight: 400 grams each

Premium Features:

• Dedicated forgings for maximum strength and durability
• Precision balanced to +/- 1 gram
• Fully CNC machined for exact tolerances
• Accumulator grooves for improved oil control
• Dual forced pin oilers for enhanced lubrication
• Pick lock grooves integrated into design
• Wrist pins and pin fitting included at no additional cost

CP-Carrillo pistons are manufactured using proprietary tooling, dedicated cutters, and state-of-the-art equipment in their climate-controlled facility in Irvine, California. Each piston undergoes rigorous quality control inspection using computerized electronic equipment to ensure it meets the highest standards. These pistons are suitable for turbocharged, supercharged, and nitrous oxide applications, making them ideal for high-performance street and racing builds.

Note: Locks not supplied - use factory locks.