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CP Piston & Ring Set for Acura/Honda K20A/A2/A3 - Bore 86mm - Size STD - Compression Ratio FT

This CP Piston & Ring Set is engineered for high-performance applications in Acura and Honda engines featuring the K20A, K20A2, and K20A3 variants. It includes forged aluminum pistons with a flat top design and four valve reliefs, optimized for a compression ratio of 9.4:1 (FT). The pistons are precision-machined, X-rayed, sonic tested, and magna-fluxed to ensure durability and reliability under demanding conditions.

  • Bore size: 86mm (standard)
  • Stroke: 86mm
  • Rod length: 139.99mm
  • Forged aluminum piston material
  • Flat top piston style with four valve reliefs
  • Compression ratio: 9.4:1 (FT)
  • Includes piston rings
  • Weight approximately 313 grams per piston
  • Pin diameter: 22mm
Make Model Year Type
Acura RSX 2002 Base
Acura RSX 2002 Type-S
Acura RSX 2003 Base
Acura RSX 2003 Type-S
Acura RSX 2004 Base
Acura RSX 2004 Type-S
Acura RSX 2005 Base
Acura RSX 2006 Base
CP Pistons manufactures performance pistons for the Sport Compact and Domestic markets. Their manufacturing plant encompasses 32,000 square feet of CNC equipment and a climate controlled inspection department ensuring accurate and consistent quality. All pistons are made in CP’s Irvine based facility from USA made materials and are engineered for maximum power. With over 500 shelf parts available, their wide product range covers the most popular engines. Custom sizes are also available, for both sport compact and domestic vehicles.
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