Carrillo SC73381-6 Forged Pistons and Ring Kit for Nissan 3.5L

The CP-Carrillo SC73381-6 is a forged aluminum piston and ring kit engineered for Nissan 3.5L engines. Featuring a dome-style piston head with four valve reliefs and a -6.60cc head volume, this kit delivers precise compression characteristics suited for high-performance naturally aspirated and nitrous oxide applications.

Each piston is machined from high-strength forged aluminum with a custom skirt cam and barrel profile, accumulator grooves, and deep valve relief geometry to accommodate high-lift camshafts and oversized valves. CP-Carrillo's advanced 5-axis CNC machining and computer-aided piston modeling ensure tight dimensional tolerances and consistent quality across the set.

Key Specifications:

• Bore: 3.780 in. (96.000mm)
• Stroke: 81.40mm
• Rod Length: 144.200mm
• Piston Style: Dome with four valve reliefs
• Piston Head Volume: -6.60cc
• Compression Height: 1.167 in.
• Wrist Pin Diameter: 0.866 in.
• Wrist Pin Style: Press-fit or floating
• Piston Material: Forged aluminum

Ring Package Specifications:

• Top Ring: 1.2mm steel
• Second Ring: 1.2mm cast iron
• Oil Ring: 2.5mm
• File Fit: No
• Gapless: No

Kit Includes: Piston rings, wrist pins, and wrist pin retainers. Suitable for nitrous oxide and naturally aspirated applications. Not for remanufactured use.