IAG 800 BHP FA20 Subaru Short Block (10.5:1 Compression Ratio) - 2013-2021 Scion FRS / Subaru BRZ / Toyota 86

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.

 

 

UNLOCK THE FULL POTENTIAL OF YOUR BRZ/FT86

The IAG 800 Short Block is expertly crafted for modified FA20 Subaru BRZs or FT86s, offering a reinforced platform to handle the amplified cylinder pressures produced by larger aftermarket turbochargers. Featuring our proprietary closed-deck cylinder support system, the IAG 800 short block strengthens the OEM FA20 cylinder walls to ensure enduring performance. Fitted with IAG Spec H-Beam forged connecting rods, this short block delivers exceptional strength and reliability. Additionally, to optimize head gasket sealing, an o-ring and 1/2" head studs are incorporated, enabling enhanced compression of the head gasket. These upgrades are ideal for enthusiasts looking to maximize the capabilities of their BRZs equipped with full bolt-on and turbo enhancements.

CRAFTED WITH ALL-NEW COMPONENTS

The foundation of the IAG 800 short block begins with pristine Subaru FA 2.0L engine case halves, meticulously prepared to optimize oil flow. These halves are then expertly assembled and machined together in our Haas VF-4SS CNC mill to seamlessly integrate the IAG Closed Deck Inserts, transforming the block into a solid, fortified structure. Notably, these inserts feature intricate passages ensuring essential coolant circulation across the deck surface. Subsequent CNC machining equips the case halves with O-ring receiver grooves around the bore surface and meticulously drills and taps them to accommodate 1/2" head studs, effectively reducing the risk of head gasket failures under high cylinder pressure scenarios. Following this, the short block undergoes Deck Plate boring and honing to 86.1mm, employing our in-house Sunnen SV-30 cylinder hone for precision. Our meticulous honing process ensures tighter piston-to-wall clearances, facilitating smoother engine operation. The assembly is completed using a new 2020 Subaru FA20 crankshaft expertly paired with ACL or King main bearings. IAG-Spec H-Beam rods with ARP2000 rod bolts are utilized, along with King or ACL rod bearings, while new OEM case bolts and sealant securely seal the case halves. Finally, IAG-Spec 86.1mm forged pistons are installed, complemented by an OEM oil plug to conclude the construction of the short block.



ENHANCED OIL CIRCULATION FOR IMPROVED PERFORMANCE

Effective oil flow is crucial for reliable performance. It's well-known that Subaru's OEM cases may not fully meet the demands of optimal lubrication. To overcome this challenge, our expert machinists meticulously inspect and upgrade the internal oil passages of each new OEM case used in the IAG 800 Short Block, ensuring consistent and reliable oil flow for enhanced performance.



FORGED PISTONS ENGINEERED FOR BOOST

In every IAG 800 Short Block, you'll discover IAG Spec JE FSR 86.1mm Forged Pistons, meticulously crafted from 2618 T6 Alloy for unparalleled strength. These pistons are purpose-built to endure the elevated cylinder pressures that accompany heightened boost levels. Utilizing FSR forgings, mass is reduced and friction-induced wear is minimized, all while preserving durability. This is achieved through an innovative asymmetrical skirt design, which not only significantly reduces weight compared to traditional full-round skirts but also ensures resilience. With smooth-flowing radii on the domes and dishes, these pistons facilitate optimal flame travel for enhanced combustion efficiency. Anchored to the rods with .905 x 2.250" x .210" wall carbon steel wrist pins featuring Tru Arc locks, these pistons are engineered to deliver consistent performance in demanding conditions. Notably, this block incorporates 10.5:1 Lower Compression pistons, tailored specifically for increased boost levels and larger turbochargers, making it the perfect choice for enthusiasts seeking heightened power output.



IAG 800 FA20 2.0L BRZ/FT86 Low Compression Short Block Includes:

Case Halves -Brand new OEM Subaru FA20 case halves, bored and honed to 86.1mm
Case Machining - Modified for improved oiling
Case Machining - Bored and honed to 86.1mm
O-Ringing - Machine and O-Ring Deck Surface
Head Studs - Machine Case for 1/2" head studs - *Head studs are sold separately
Pistons -IAG-Spec 86.1mm Forged Pistons, Ring Set, and .210" x 2.250" Chromoly Wrist Pins. 10.5:1 Compression
Connecting Rods -IAG-Spec H-Beam / ARP2000 Rod Bolts
Rod -ACL or King XPG
Main Bearings -OEM or King XPG
Crankshaft -New Subaru FA20 crankshaft
Case / Main Bolts -Standard Subaru case bolts
Hardware - OEM Oil Plug - comes preinstalled at the oil pan location


Compression Ratio:

10.5:1 compression on standard gasket thickness.

 

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.