IAG 900 Closed Deck Long Block Engine w/ Stage 4 Heads & GSC S2 Cams - 2008-2021 Subaru STI

Please Note: This item is not eligible for standard ground shipping and must be delivered via freight. To receive a custom invoice that includes all applicable freight charges, kindly contact us by email or phone.

 

STOCK NOTICE: This item is built to order and carries a minimum 6-8 week build time. 

 

 

HIGHLIGHTS:

• Fully blueprinted, balanced, and assembled by IAG Performance
• Designed to handle up to 900+ BHP
• Will include GSC's Stage 2 billet camshafts

IAG 900 Closed Deck Long Block Engine w/ Stage 4 Heads & GSC S3 Cams

---

900 CLOSED DECK LONG BLOCK INCLUDES:

• Case Halves: Converted to closed deck from brand new OEM Subaru case halves that are bored and honed to 99.75mm
• Fire Lock - IAG Fire-Lock receiver groove machining, the latest solution to prevent head gasket failure on high horsepower and high boost Subarus
• Machined casings for 14mm head studs
• IAG Pec JE FSR 99.75mm 2618 forged pistons, electroless nickel-plated tops and ring area, ring set, .250" / .906" H13 wrist pins and clips
• IAG-Spec Tuff H-Beam +2mm connecting rods with ARP 625+ rod bolts
• ACL or King Race rod and main bearings
• Standard new Subaru nitride treated 2017+ STI crankshaft

 

STAGE 4 HEADS:

• Brand new Subaru OEM WRX/STI cylinder head castings
• CNC machine ported intake and exhaust runners
• GSC 37mm (+1mm) intake valves
• GSC 33mm (+1mm) SuperAlloy exhaust valves
• GGSC beehive valve springs and retainers
• GSC Manganese valve guides
• GSC valve stem seals
• OEM lifter buckets
• GSC Stage 2 billet camshafts
• Multi-angle valve job
• Machined cam lobe clearance
• Drilled for 14mm head studs
• Resurfaced
• Ultrasonix cleaning
• Final lash

 

GASKETS AND HARDWARE:

• IAG / ARP 14mm head studs
• 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 900 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 900 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 900 is a great option for those of you who want an engine strong enough to sustain up to 900+ HP levels.

 

IMPORTANT DELIVERY NOTE:

Your order is shipping Via Truck Freight which requires you to be available at the time of receipt. There is a possibility the trucking company will try to schedule a delivery time with you.

At the time of delivery, the driver will hand you the delivery receipt also referred to as the bill of lading, you will use this to notate any damages to the shipment. It is important that you fully inspect the shipment from all sides and notate any dents, punctures or rips in the outside packaging on the delivery receipt. Once you've inspected your shipment from the outside, you will need to open it and check the product in its entirety for damages and notate them if any.

If there is no damage sign for the package and enjoy!

In the rare case, you do find that your order arrived with damages, it is important you follow these steps.

- Do not refuse the product
- Document the damages in as much detail as possible on the Bill of Lading
- Take numerous photos from all angles (including packaging)
- Keep the product and contact the shipping company to start the damage claim
- Contact us either by phone or email for the next steps

In the situation where the delivery driver is unable to wait for you to open and inspect your product, simply document "driver was unable to wait for inspection." All damage must be noted on the Bill of Lading before signing and initiating a damage claim. If the damage is not notated before signing for the item it is assumed to be in good condition. This will forfeit the ability for a shipping claim and you will not be eligible for refund or replacement.