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CP Piston & Ring Set for Mitsubishi 1st Gen 4G63 - Bore (85.5mm) - Size (+0.5mm) - Compression Ratio

This CP Piston & Ring Set is engineered for the Mitsubishi 1st Gen 4G63 engine, featuring a bore size of 85.5mm and an oversized +0.5mm dimension to ensure precise fitment and enhanced performance. Crafted from forged aluminum, these pistons are designed to withstand the intense heat and pressures of high compression engines, suitable for naturally aspirated, turbocharged, or supercharged applications.

Each piston features a dish design with four valve reliefs to accommodate oversized valves and high lift camshafts, optimizing combustion efficiency and power output. The set includes high-quality piston rings matched for durability and sealing performance, making it ideal for motorsport and high-performance street builds.

  • Forged aluminum piston construction for strength and durability
  • Dish piston design with four valve reliefs for clearance and performance
  • Bore size: 85.5mm with +0.5mm oversize for precise fit
  • Compatible with high compression ratios and forced induction setups
  • Includes matched piston rings for optimal sealing
Make Model Year Type
Eagle Talon 1990 TSi
Eagle Talon 1991 TSi
Eagle Talon 1992 TSi
Mitsubishi Eclipse 1990 GS
Mitsubishi Eclipse 1990 GSX
Mitsubishi Eclipse 1991 GS
Mitsubishi Eclipse 1991 GSX
Mitsubishi Eclipse 1992 GS
Mitsubishi Eclipse 1992 GSX
Plymouth Laser 1990 RS
Plymouth Laser 1991 RS
Plymouth Laser 1992 RS
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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