JE Pistons

JE Shelf Pistons w/pins, rings and locks (Mitsubishi 4G63T - Evo VIII/IX, 85.5mm Bore, 8.5:1) 297479

  • Sale
  • $566.99
  • Regular price $1,231.80


JE Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. Dome/Dish requires no deburring or preparation and features smooth flowing radii for excellent flame travel.

Engine: MITSUBISHI 2001-2007 EVOLUTION VII-IX / 4G63 22MM PIN

Pistons: 4
Bore: 85.5mm
Stroke: 94.0mm
Rod: 150mm
Compression Height: 31.7mm
Head Combustion Chamber: 47cc
Crown Volume: -17.9mm
Weight (Grams): 296g
Compression Ratio: 8.5:1 with .040
Alloy: 2618 T6 high tensile forged aluminum 
Skirt: FSR (Forged Side Relief)
Rings: 1.0 x 1.2 x 2.8mm rings included (JG1004-3366)
Pins: .866 x 2.250 straight wall carbon steel wrist pin provided
Application Note: Accepts Turbo and Nitrous

Kit Feature: Pin fitting, wire locks, and rings included