Carrillo SC7301-1 Forged Piston Nissan Pistons - RB30 RB26DETT RB25DET 86mm

The CP-Carrillo SC7301-1 is a single forged aluminum piston from CP-Carrillo's Sport Compact shelf line, designed for Nissan RB30 bottom-end builds paired with RB26DETT or RB25DET cylinder heads. With an 86mm (3.386") bore at standard sizing, this piston delivers a compression ratio of approximately 8.2:1 with an RB26 head or 8.5:1 with an RB25 head, making it well-suited for high-performance forced-induction builds.

CP-Carrillo pistons are manufactured from high-strength 2618-T61 aluminum alloy forgings and are fully CNC machined and balanced to within +/- 1 gram for precision consistency. Deep valve reliefs are engineered to accommodate oversized valves and high-lift camshafts, while dual pin oilers provide enhanced lubrication to the wrist pin under extreme operating conditions.

Key Features:

• Single forged aluminum piston — SC7301-1 (individual unit)
• 86mm (3.386") bore diameter, standard sizing
• 1.280" compression height
• Compatible with RB26DETT head (8.2:1 CR) and RB25DET head (8.5:1 CR)
• High-strength 2618-T61 aluminum alloy forging
• Fully CNC machined and balanced to +/- 1 gram
• Deep valve reliefs for oversized valves and high-lift camshafts
• Dual pin oilers for enhanced wrist pin lubrication
• Accumulator groove for improved ring seal and power
• Wrist pin and spiral locks included
• Made in the USA

The SC7301-1 is part of CP-Carrillo's extensive Sport Compact shelf catalog, backed by decades of motorsports R&D. Whether building a street/strip Skyline or a dedicated track car, this piston provides the strength and precision required for demanding high-boost applications. Note: This listing is for a single piston. Full sets of 6 are available under part number SC7301-6.