IAG
IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 D25 Heads
2006-2014 Subaru WRX / 2006-2013 Subaru Forester XT / 2007-2009 Subaru Legacy GT
Ships for free in the 48 states
SKU: IAG-ENG-4040DWe price match!
HIGHLIGHTS:
- Fully blueprinted, balanced, and assembled by IAG Performance
- Designed to handle up to 1000+ BHP
Details
IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 D25 Heads
STAGE 4 EXTREME CLOSED DECK INCLUDES:
- Brand new OEM Subaru case halves converted to closed deck bored and honed to 99.75mm
- Machined case for 9.5mm pinned mains and lined honed
- IAG Fire Lock receiver groove machining, the latest solution to prevent head gasket failure on high horsepower and high boost Subaru engines
- Machined for 14mm head studs
- IAG Spec JE FSR 99.75mm 2618 forged pistons, electroless nickel plated tops and ring area, ring set, 2.50" / .927" H13 wrist pins, and clips
- IAG Spec Tri-Beam connecting rods with ARP 625+ rod bolts
- ACL or King rod and main bearings
- Billet crankshaft by Callies
- ARP main bolts
STAGE 5 HEADS:
- Brand new Subaru OEM WRX/STI cylinder head castings
- CNC ported intake and exhaust runners
- Ferrea 37mm (+1mm) Comp Plus intake valves
- Ferrea 33mm (+1mm) Comp Plus exhaust valves
- Ferrea dual valve springs and titanium retainers
- Ferrea valve keepers
- GSC Manganese Bronze valve guides
- Ferrea valve stem seals
- OEM lifter buckets
- GSC Stage 3 billet camshafts
- Multi-angle valve job
- Machined cam lobe clearance
- Drilled for 14mm head studs
- Resurfaced
- Ultrasonic cleaning
- Final lash
GASKETS AND HARDWARE:
- IAG / ARP 14mm heat stud set
- IAG Fire-Lock 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 1000 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 1000 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 1000 Closed Deck Long Block is a great option for those of you who want an engine strong enough to sustain up to 1000+ HP levels.