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IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 Tuff EJ25 Subaru Short Block
Subaru Models (inc. 2006-2014 WRX / 2004+ STI)
Read 1 Reviews | 2 Q&As
Part # IAG-ENG-1211
$3,499.99
msrp: $3,674.99
Ships within 28 days

Features & Product Details

RallySport Direct now carries highly sought-after high-performance upgrades and accessories brought to you by IAG Performance. 

On this page, you are looking at the IAG Performance Stage 2 TUFF Short Block. This particular short block has been bored and honed to 99.75mm using IAG's in-house Sunnen SV-10. The result is tighter wall clearances on the pistons to help produce a quieter running engine. It is carefully measured and assembled using forged pistons and a new 2017+ STI Nitride Treated crankshaft.

Rated to 675BHP.

Here are the details:

  • Brand new Subaru OEM Subaru case halves bored and honed to 99.75mm
  • Manley 99.75mm Platinum Series Forged Pistons 
  • .210" steel pins
  • IAG Spec H-Beam connecting rods
  • ARP2000 Rod bolts
  • ACL rod and main bearings 
  • New Subaru Nitride Treated 2017+ STI crankshaft
  • Standard FHI Subaru case bolts
  • Note: Compression ratio is subject to change based on cylinder heads and head gaskets used. 

  • 8.2:1 on B, V, and W cylinder heads (EJ257)
  • 8.5:1 on D cylinder heads (EJ255)
  • Specifications

    Brand: IAG Performance
    Assembly: Assembled
    Bore Size (mm): 99.75
    Compression Ratio: 8.2:1
    Crank: OEM Forged
    Crank Size: OEM
    Displacement: 2.5L
    Piston Material: Forged Aluminum
    Power Output Rating (BHP): 675
    Rods: OEM Forged
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    Not Specified

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    REVIEWS & CUSTOMER MEDIA

    1 Reviews
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    1 of 1 people found the following review helpful
    Worth every penny 3 months ago
    psykotic 0331
    This is a great motor!! I didn't get it from RSD but if it had been available here when I did my build I would have. Anyways, this motor is awesome. I have a conservative tune, but a lot of mods. Currently running 410 WHP on a 1.5 xtr (10cm housing and 3in inlet)on pump 93 with very little knock. I've had it for about 8 months and its running strong. Great motor!!! Tuner loved it!
      
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    QUESTIONS & ANSWERS

    • Q: 2017 sti  RP29 days ago

      Will the 2017 sti stock heads fit?
    • Q: Fit 14wrx  Austin_EJ252 months ago

      Will 2014 wrx heads bolt right up and do these short blocks come pre-assembled or do we have to assemble?
      • 1 of 1 people found the following answer helpful

        A:  You would need to do some machine work to the heads to make them line up, the short blocks are pre assembled.

        Devan M. @ RallySport Direct 2 months ago  
          
        Was this answer helpful?

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