Carrillo SC7313-1 Forged Piston for Nissan Bore Compression Pistons - RB26DETT 86.5mm 9.0 1

The Carrillo SC7313-1 is a high-performance forged aluminum piston designed specifically for the Nissan RB26DETT engine found in Skyline GT-R R32, R33, and R34 models. This single piston features an 86.5mm bore diameter (+0.5mm oversize) and delivers a 9.0:1 compression ratio, making it ideal for naturally aspirated builds or moderate boost applications.

Key Specifications:

• Bore diameter: 86.5mm (3.406 inches) - +0.5mm oversize
• Compression ratio: 9.0:1
• Compression height: 1.193 inches
• Stroke compatibility: 73.7mm
• Wrist pin diameter: 21mm (0.827 inches)
• Piston head volume: +19.8cc dish design
• Material: 2618 forged aluminum alloy

Performance Features:

• Fully CNC-machined and balanced to +/- 1 gram for smooth operation
• Deep valve reliefs accommodate high-lift camshafts and oversized valves (+1mm valve sizes)
• Four valve relief design optimized for the RB26DETT cylinder head
• Accumulator groove for improved oil control
• Double pin oilers with force-fed design from oil ring
• Pick lock grooves for easy wrist pin lock installation and removal
• Gas nitride piston rings for superior sealing and durability

CP-Carrillo pistons are manufactured in Irvine, California using advanced 5-axis CNC machining and proprietary forging processes. Each piston undergoes rigorous quality control to ensure dimensional accuracy and performance. This piston is compatible with CP ring part number CPN 3406 and uses 827 063 SWL pin locks. Wrist pin and locks are included with complete piston sets but may be sold separately depending on configuration.

Note: This listing is for a single piston (SC7313-1).