CP-Carrillo SC73081-6 Forged Dome Piston Set – Nissan RB25DET 87mm 8.5:1 Compression

Designed exclusively for RB25 applications, this kit delivers the precision and strength demanded by high-performance forced-induction and competition builds.

Key Specifications:

• Bore: 87mm (3.425 in.) — +1.0mm oversize
• Stroke: 71.1mm
• Compression Ratio: 8.5:1
• Piston Head Volume: -10.60cc (dome)
• Compression Height: 1.240 in. (31.5mm)
• Rod Length: 121.5mm
• Piston Material: 2618 forged aluminum alloy
• Wrist Pin Style: Press-fit or floating

Standard Features Included:

• Dual Pin Oilers — deliver twice the lubrication to the wrist pin for enhanced reliability
• Accumulator Groove — captures combustion gases after the first ring to reduce ring flutter and improve sealing
• Radiused valve reliefs for compatibility with stock and oversized valves
• High lift camshaft compatible
• Pin fitting final hone on wrist pin bore for precise fitment
• Balanced to within ±1 gram per set
• Wrist pins, pin locks, and pin fitting included at no extra charge

These pistons are compatible with turbo, supercharger, and nitrous applications, making them a versatile choice for serious RB25DET performance builds. Note: These pistons are for RB25 engines only and are not compatible with RB26 engines. The cylinder block must be bored to 87mm to accept this oversize piston.