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  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
  • IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
    IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
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    IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)

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    IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)
    IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200) IAG Stage 2 2.5L Subaru Short Block | Subaru Multiple Fitments (IAG-ENG-1200)

    Stage 2 Subaru Short Block - 2.5L

    The IAG Stage 2 Short Block is designed for modified EJ25 Subaru's that need a beefed up performance short block. The IAG Stage 2 short block builds on the Stage 1's strengths by adding ACL Race bearings and Brian Crower Sportsman H-Beam forged connecting rods. The upgraded rods and bearings are able to support additional engine load produced by larger turbochargers that the OEM STI rods cannot support reliably.

    Each IAG Stage 2 Short Block starts with new Subaru 2.5L 99.5mm stock bore EJ25 engine case halves as standard. The short block is measured and assembled using a new 2012+ Subaru 2.5L heat-treated STI crankshaft that is matched to ACL or King race main bearings. Brian Crower Sportsman H-Beam rods and ARP2000 rod bolts are utilized along with ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally Manley 99.5mm Platinum Series Forged Pistons are spec'd and installed finishing off the short block.

    Features

    • Manley 99.5mm Platinum Series Pistons,
      Ringset, Tool Steel Pins and Clips
      (w/ Coated Skirts and Offset Wrist Pin)
    • New FHI Subaru Case Halves at 99.5mm (Stock Bore)
    • Brian Crower Sportsman H-Beam Forged Connecting Rods
      w/ ARP2000 Rod Bolts
    • New FHI Subaru Heat Treated 2012+ STI Crankshaft
    • ACL or King Rod Bearings
    • ACL or King Main Bearings
    • New FHI Main Case Bolts
    • IAG Spec Blueprint Sheet
    • Power Output Rating: 475BHP

    Applications

    • 2002-2005 Subaru WRX (requires mods)
    • 2006-2014 Subaru Impreza WRX
    • 2004-2014 Subaru Impreza WRX STi
    • 2015-2017 Subaru STI
    • 2005-2012 Subaru Legacy GT
    • 2004-2013 Subaru Forester XT

    What's In The Box?

    • The IAG Stage 2 Short Block has a power output rating of 650BHP
    • *All IAG short blocks are balanced and blueprinted
    • Compression Ratio: 8.5:1 on D Cylinder Heads (EJ255)
    • Compression Ratio: 8.2:1 on B, V and W EJ257 Heads w/ std. gasket

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