SUBARU 2.5L EJ25 BILLET CRANKSHAFTS


  • • Manufactured from 4340 Precision Billet Steel
  • • Gun drilled crank pin and counterweights to reduce weight and rotating mass
  • • Journal radium disperse load stress
  • • Full CNC machining
  • • Dual passage – straight through oil feeding.
  • • Each journal having two main sources of oil feed, providing enhanced lubrication at higher RPM.
  • • Nitride process for hardening
  • • Multi-stage Heat Treatment
  • • Sonic tested and X-rayed to ensure a reliable end product
  • • Crankshaft is fully balanced @ 1gr +/- 0.1
  • • Magna-fluxing for flawless surface finish
  • • Heat treatment for superior wear resistance
  • • Micro-polishing for longer bearing life
  • • Shot peening for improved fatigue resistance