IAG

IAG 700 Closed Deck Long Block Engine w/ Stage 3 W25 Heads

2008-2021 Subaru STI

$11,549.99
Ships for free in the 48 states

SKU: IAG-ENG-4015WWe price match!

On order from MFG
Average time to ship: 33 business days

HIGHLIGHTS:

  • Fully blueprinted, balanced, and assembled by IAG Performance
  • Designed to handle up to 700+ BHP
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Details

IAG 700 Closed Deck Long Block Engine w/ Stage 3 W25 Heads


STAGE 2.5 CLOSED DECK SHORT BLOCK

  • Brand new Subaru OEM case halves converted to closed deck then bored and honed to 99.75mm
  • IAG Spec JS FSR 99.75mm 2618 forged pistons, ring set, .210" 9310 steel wrist pins, clips
  • IAG Spec Tuff H-Beam connection rods with  ARP2000 rod bolts
  • ACL or King Race rod or main bearings
  • Standard new Subaru nitrided treated 2017+ STI crankshaft
  • Standard FHI Subaru case bolts

 

STAGE 3 HEADS:

  • Brand new Subaru OEM WRX/STI cylinder head castings
  • CNC pocket ported machining
  • GSC 37mm (+1mm) intake valves
  • GSC 33mm (+1MM) exhaust valves
  • GSC single valve springs and titanium retainers
  • OEM valve guides
  • GSC valve stem seals
  • OEM lifter buckets
  • GSC Stage 2 billet camshafts
  • Multi-angle valve job
  • Machined cam lobe clearance
  • Resurfaced
  • Ultrasonic cleaning
  • Final lash

 

GASKETS AND HARDWARE:

  • ARP 625+ 11mm head studs
  • OEM head gaskets
  • OEM valve cover gaskets
  • OEM cam seals
  • OEM valve covers
  • Wrist pin seal, rear main seal, and separator kit
  • Crankshaft woodruff key

 

BALANCED AND BLUEPRINTED WITH A 700 BHP RATING

For those of you with a tired EJ, or an EJ with large holes in the block that shouldn't be there, you're in luck. This particular short block has been built and assembled by one of the most established names in the Subaru performance industry, IAG Performance. This is the IAG 700 Closed Deck Long Block that has been blueprinted, balanced, and assembled to be ready to install in your Subaru. For those of you with modifications that make more horsepower and more boost, you may be surpassing the limits of the factory short block, and the IAG 700 is a great option for those of you who want an engine strong enough to sustain up to 700+ HP levels. 

 

 



Power:The IAG 700 Long Block has a power output rating of 700BHP.

*All IAG short blocks are balanced and blueprinted.

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