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IAG Stage 1 2.5L Subaru Short Block For WRX/STI/LGT/FXT
IAG Stage 1 2.5L Subaru Short Block For WRX/STI/LGT/FXT


 
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Our Price: $3,599.99



Product Code: IAG-ENG-1002


Seal Kit :


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Description
 
The IAG Stage 1 Short Block is perfect for lightly modified EJ25 Subaru's that need a basic and reliable performance short block. Subaru turbo engines are commonly known for piston ring land failures and if gone unchecked lead to rod knock and total engine failure due to oil starvation from blow by. IAG's Stage 1 Short Block includes upgraded forged pistons along with performance main and rod bearings that replace the OEM components that are prone to common failure on Stage 2 and up vehicles. Each IAG Stage 1 Short Block starts with a new Subaru 2.5L 99.5mm bore EJ25 engine case halves as standard. The short block is measured and assembled using a new 2017+ Nitride Treated Subaru 2.5L STI crankshaft that is matched to ACL or King main bearings. Early style OEM STI rods are utilized along with ACL or King rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, 99.5mm IAG-Spec JE Forged Pistons are spec'd and installed finishing off the short block.


Stage 1 Short Block Includes-

  • Case Halves - Brand new Subaru OEM case halves 99.5mm Stock Bore
  • Pistons - IAG-Spec JE 99.5mm Forged Pistons, Ring Set, .180" Chromoly Steel Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pin)
  • Connecting Rods - Early OEM (Stronger Style) STI rods
  • Rod / Main Bearings - ACL or King Bearings
  • Crankshaft - Standard New Subaru Nitride Treated 2017+ STI Crankshaft
  • Case / Main Bolts - Standard FHI Subaru case bolts

Additional Options Available-

  • Hardware / Seals - OEM cover and seal kit - $105.99
  • IAG Oil Pickup - Upgraded oil pickup featuring heavy gauge steel tubing, 2 point bracket & mesh filter - $129.99

Power: The IAG Stage 1 Short Block has a power output rating of 500BHP.

*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 with standard thickness gasket.


Hardware / Seal Option:

Subaru EJ25 Seal Kit


Not planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.



Please review the PDF document below regarding installation, break-in procedures and warranty information.

PDF After Sale Document - Contains Shipping, Engine Care and Warranty Information



WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.

IAG Short Block Warranty Limitations are as follows:
  • Standard Warranty period begins on the day the engine was delivered.

  • Standard Warranty applies only to short block components manufactured and assembled by IAG Performance.

  • Standard Warranty does not extend to any other part of the engine, turbocharger, accessories, or vehicle in which the engine is installed, or subsequent damage to any component or part of the vehicle due to an engine failure.

  • Standard Warranty coverage excludes any shipping costs incurred to return the product to our facility. If the warranty claim is denied, the client will be responsible for return shipping from our facility.

  • Standard Warranty coverage excludes any and all labor expenses needed for reassembly, as well as any components (i.e. gaskets, fluids, etc.) required for reinstallation.

  • Standard Warranty is only offered if the short block is professionally installed, with receipts provided.

  • Standard Warranty is non-transferrable and only offered to the original purchaser of the engine.

  • All parts used in the assembly of the IAG built short block carry the manufacturer’s individual component warranties. No warranty is expressed or implied for any customer-supplied components.

  • Standard Warranty clients are responsible for initiating a warranty claim with IAG directly.

  • The client agrees that they will be held responsible for all engine tear down costs for claims deemed insufficient and/or invalid.

  • Proof of proper maintenance is the owner’s responsibility.

  • Any covered repairs or replacement will not extend the warranty period.

  • You must register your engine by completing the online form at https://www.iagperformance.com/warranty.

Model Year & Fitment

  • 2002 Subaru WRX (Requires Mods)
  • 2003 Subaru WRX (Requires Mods)
  • 2004 Subaru WRX (Requires Mods)
  • 2005 Subaru WRX (Requires Mods)
  • 2006 Subaru WRX
  • 2007 Subaru WRX
  • 2008 Subaru WRX
  • 2009 Subaru WRX
  • 2010 Subaru WRX
  • 2011 Subaru WRX
  • 2012 Subaru WRX
  • 2013 Subaru WRX
  • 2014 Subaru WRX
  • 2004 Subaru STI
  • 2005 Subaru STI
  • 2006 Subaru STI
  • 2007 Subaru STI
  • 2008 Subaru STI
  • 2009 Subaru STI
  • 2010 Subaru STI
  • 2011 Subaru STI
  • 2012 Subaru STI
  • 2013 Subaru STI
  • 2014 Subaru STI
  • 2015 Subaru STI
  • 2016 Subaru STI
  • 2017 Subaru STI
  • 2018 Subaru STI
  • 2005 Subaru Legacy GT
  • 2006 Subaru Legacy GT
  • 2007 Subaru Legacy GT
  • 2008 Subaru Legacy GT
  • 2009 Subaru Legacy GT
  • 2004 Subaru Forester XT
  • 2005 Subaru Forester XT
  • 2006 Subaru Forester XT
  • 2007 Subaru Forester XT
  • 2008 Subaru Forester XT
  • 2009 Subaru Forester XT
  • 2010 Subaru Forester XT
  • 2011 Subaru Forester XT
  • 2012 Subaru Forester XT
  • 2013 Subaru Forester XT

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