IAG / Crest CNC Billet Aluminum EJ25 Subaru Case Halves | Subaru Multiple Fitments (IAG-ENG-1600)

IAG Performance
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$11,549.99

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IAG / Crest CNC Billet Aluminum EJ25 Subaru Case Halves

The CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness that exists in max-power builds. The IAG / Crest CNC EJ Block, (Formerly Willall) is machined from 6061-T6 Aerospace Aluminum and features Darton Ductile Iron Sleeves. The block is designed with increased material thickness over the OEM cast aluminum case halves and adds a unique 4-bolt bottom end for additional strength.

Features

  • Machined from solid billet 6061-T6 Aerospace grade aluminum
  • Darton Ductile iron sleeves
  • Increased material thickness in all known weak points (around head studs, bottom end location)
  • Unique 4 bolt bottom end strengthening
  • Threads are rolled into the block rather than conventionally cut for much greater strength
  • Full cooling system operation
  • Radiused coolant and oil galleries for improved flow and less foaming/turbulence
  • Fits all factory engine bay ancillaries (i.e. AC/PS/etc.)
  • Multiple Times stiffer and stronger than stock case
  • Precision machined for superior surface finish
  • Hard anodized to avoid marking or straining

Minimum Requirements To Build & Assemble

  • ARP Case Bolts (Sold separately)
  • 14mm Head Studs (Sold separately)
  • Internal components (Pistons, Rods, Bearings, Crank, All sold separately)
  • Decking head gasket surface required

Applications

  • 2002-2005 Subaru Impreza WRX (requires mods)
  • 2006-2014 Subaru Impreza WRX
  • 2004-2014 Subaru Impreza WRX STi
  • 2015-2021 Subaru WRX STI
  • 2005-2009 Subaru Legacy GT
  • 2004-2013 Subaru Forester XT

    DOES NOT FIT THE 2010-2012 Legacy

What's In The Box?

  • 1 - IAG / Crest CNC Billet Aluminum EJ25 Subaru Case Halves

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