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IAG 500 EJ25 Long Block Engine w/ D25 Heads - Subaru Models (inc. WRX 2006 - 2014)
IAG 500 EJ25 Long Block Engine w/ D25 Heads - Subaru Models (inc. WRX 2006 - 2014)
IAG 500 EJ25 Long Block Engine w/ D25 Heads - Subaru Models (inc. WRX 2006 - 2014)

IAG 500 EJ25 Long Block Engine w/ D25 Heads

Subaru Models (inc. WRX 2006 - 2014)

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Part # IAG-ENG-4000D
$8,499.99

Product will ship from manufacturer, average time to ship: 8 business days
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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 500 Long Block. This package is a complete, valve cover to valve cover, crate engine. It is the perfrect option for ease of installation and gives you a premier "drop in" engine. This kit will support up to 500BHP applications. IAG's break-in instructions MUST be followed and the package must be professionally installed for the 12 month / 12k mile warranty to be applicable. All IAG Short Blocks are balanced and blueprinted.

Here is what the package contains:

Stage 1 Short Block:

  • 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

  • Stage 1 Heads:
  • Heads - Brand New Subaru OEM WRX STI Cylinder Head Castings
  • Intake Valves - GSC 36mm (Standard) Intake Valves
  • Exhaust Valves - GSC 32mm (Standard) Exhaust Valves
  • Springs / Retainers - GSC Single Valve Springs & Titanium Retainers
  • Guides - OEM Valve Guides
  • Valve Seals - GSC Valve Stem Seals
  • Lifters - OEM Lifter Buckets
  • Camshafts - GSC Stage 1 Billet Camshafts
  • Multi-Angle Valve Job
  • Machined Cam Lobe Clearance
  • Resurface
  • Ultrasonic Cleaning
  • Final Lash

  • Gaskets, Hardware & Accessories:
  • Head Studs - ARP 2000 11mm Set
  • Head Gaskets - OEM
  • Valve Cover Gaskets - OEM
  • Cam Seals - OEM
  • Valve Covers - OEM
  • Wrist Pin Seal, Rear Main Seal & Separator Kit
  • Crankshaft Woodruff Key
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    QUESTIONS & ANSWERS

    • Q: tune  miltownWRX1 year ago

      I'm completely knew to these cars my block went a couple months ago and have decided to go with this option my quiestion is will i need it to be tuned at all if i take the used sstuff off the old block manifold, turbo,ect..which is all stock will i need a tune to at all or can i use the factory tune with this block to run?
      • 1 of 1 people found the following answer helpful

        A:  Yes you can use your old manifold, turbo, lines, etc. I would recommend on getting new gaskets for everything as well as a tune. You will need a break in map as well as break in oil. After breaking in the motor you can use the factory tune if you're running stock parts like downpipe, intercooler, fuel, etc. If not then I would strongly recommend getting a protune to ensure your motors health. Hope this helps! For more depth information give us a call

        Jon D. @ RallySport Direct 1 year ago  
          
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    • Q: fitment  08RumbleWagon1 year ago

      Does this not drop in to an. 2008 OBXT? Not sure why it would be verified to fit a Legacy GT but not the OBXT. It has D25 heads and shouldnt have any other fitment issues.
      • 0 of 0 people found the following answer helpful

        A:  It should without a problem. Not sure why it's not listed, but yeah you should be able to make it work. Thanks!

        Rick C. @ RallySport Direct 1 year ago  
          
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    • Q: IAG 500  gobbyz 1 year ago

      If installed by professional is this plug and play? would a tune have to be done? and how much power can this new engine handle?
      • 0 of 0 people found the following answer helpful

        A:  Yes, they will transfer over all of the timing gear, manifolds and other accessories from your old engine to this new one. And yes, a tune would be required for sure, and you could expect this to handle 500 HP reliably with a proper tune and supporting mods. Thanks!

        Rick C. @ RallySport Direct 1 year ago  
          
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    This Part Fits

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    2006 Subaru Impreza WRX
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    WRX Hatchback
    2008 Subaru Impreza WRX Hatchback
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