MITSUBISHI 2007-UP EVO X 4B11T FSR PROFESSIONAL SERIES

PISTONS DESIGN

  • Advanced, lightweight FSR forging that eliminates stress concentrations for superior strength
  • Up to 20% lighter than traditional equivalent
  • High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation
  • Accumulator grooves for improved ring seal
  • Designed for normally aspirated or moderate forced induction/nitrous applications
  • RINGS INCLUDED

  • Lightweight, low friction metric ring package included
  • 1.0mm Steel Nitrided top ring, 1.2mm Napier 2nd ring, 2.8mm oil ring
  • Napier 2nd ring for improved oil control
  • Minimal filing required
  • PINS AND LOCKS

  • High quality 2.350" pin further reduces reciprocating weight
  • Carbon steel wire locks included
  • Part Bore Oversize Stroke(mm) Rod(mm) C/D(mm) Head CC's C/R with .040 Dome CC's Gram Footnote Skirt
    289315 86.00 STD 86 143.8 34.72 50.5 9.0:1 -5 316 T F