Carrillo SC7023-4 CP Forged Piston and Ring Kit Honda R18 81mm 9.0:1

The CP-Carrillo SC7023-4 is a complete forged piston and ring kit designed for Honda R18 engines. With an 81mm (3.189 in.) bore and a low-compression -15.5cc dish design, these pistons are engineered to work with stock stroke and rod dimensions while supporting significant power upgrades.

Key Specifications:

• Bore: 3.189 in. (81.000mm)
• Stroke: 87.30mm
• Rod Length: 157.500mm
• Compression Height: 1.135 in.
• Piston Head Volume: -15.5cc Dish with four valve reliefs
• Piston Material: Forged aluminum
• Wrist Pin Style: Press-fit or floating
• Pin Diameter: 0.787 in.
• Ring Pack: 1.00mm x 1.20mm x 2.80mm
• Top Ring: 1.0mm gas-nitrided steel
• Second Ring: 1.2mm cast iron

CP-Carrillo Forged Piston Features:

• Deep valve reliefs to accommodate high-lift camshafts and +1mm oversized valves
• Anti-detonation grooves that disrupt detonation waves and protect the top ring
• Accumulator groove machined in the second ring land to reduce ring flutter and improve ring seal
• CP Groove (Constant Pressure Groove) equalizes pressure behind the top ring groove to reduce carbon build-up and improve ring stability
• Double pin oilers with dual-fed reservoir for superior wrist pin lubrication
• Custom cam and barrel skirt design for tighter clearances, reduced noise, and improved ring seal
• Fully CNC-machined and weight-matched to within ±1 gram per set
• Wrist pins, pin lock grooves, and retainers included

CP-Carrillo forged pistons are manufactured in the USA using high-grade aluminum and are engineered through extensive research and development. The SC7023-4 kit includes everything needed for a complete piston replacement or performance engine build.