Carrillo SC71401-1 Forged Piston Kit Honda K20A K20A2 86.5mm 11.5:1 High Compression

The CP-Carrillo SC71401-1 is a high-performance forged piston kit engineered for Honda K20A and K20A2 engines. This complete piston set features an 86.5mm bore (+0.5mm oversize) and delivers an aggressive 11.5:1 compression ratio, making it ideal for naturally aspirated performance builds seeking maximum power output.

Manufactured from high-strength 2618-T61 aluminum alloy forgings, these pistons offer exceptional durability under high heat and cylinder pressures. Each piston is fully CNC machined and precision balanced to within +/- 1 gram, ensuring smooth operation and maximum reliability.

Key Features:

• 86.5mm bore diameter (+0.5mm oversize) with 11.5:1 compression ratio
• High-strength 2618-T61 forged aluminum construction
• Deep valve reliefs to accommodate high lift camshafts
• Enlarged valve reliefs compatible with +1mm oversized valves
• Custom skirt cam and barrel design for optimal piston stability
• Accumulator grooves for improved oil control
• Double pin oilers force-fed from oil ring groove
• High-performance ring pack included
• 22mm wrist pins and locks included at no additional cost
• Pin lock grooves for easy installation and removal
• Pin fitting included in kit

Complete Kit Includes: Four forged pistons, four high-performance piston rings, four wrist pins (22mm), and four wrist pin locks. Optional upgrades available including gas ports, skirt coating, ceramic top coating, and upgraded 9310 steel wrist pins for extreme applications.

Precision-engineered in the USA, CP-Carrillo pistons represent decades of racing heritage and are trusted by professional engine builders worldwide. Each piston features forced pin oiling, advanced cam and barrel skirt profiles, and the flattest ring grooves possible for superior sealing and performance.