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IAG Stage 2 Tuff 2.5L Subaru Short Block for WRX | STI | Legacy GT | Forester XT

$3,499.99

IAG Stage 2 Tuff 2.5L Subaru Short Block for WRX | STI | Legacy GT | Forester XT

  • Weight: 0 lb
  • Dimensions: N/A
  • Installation Difficulty:
SKU: IAG-ENG-1213 Categories: ,

Description

The IAG Stage 2 Tuff short block starts with new Subaru 2.5L EJ25 engine case halves that are bored and honed to 99.75 on our in-house Sunnen SV-30 the most advanced automotive cylinder hone available. IAG’s in-house honing process is able to set piston to wall clearances tighter for a quieter running engine. The short block is measured and assembled using a new 2017 Subaru 2.5L nitride treated STI crankshaft that is matched to ACL or King race main bearings. Next IAG-Spec Tuff H-Beam rods with ARP Rod Bolts are utilized to increase the power rating slightly at the expense of being slightly heavier. The connecting rods are matched to ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally IAG-Spec JE 99.75mm Forged Pistons are added to finish off the short block.

Make Model Submodel Year
Subaru Forester XT 2004 - 2013
Subaru Impreza WRX 2002 - 2014
Subaru Impreza WRX STI 2004 - 2014
Subaru Legacy GT 2005 - 2009
Subaru WRX 2015 - 2018
Subaru WRX STI 2015 - 2018
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