Engines and Components Engines, Blocks and Components

IAG

800 FA20F DIT Long Block Engine Package

$6,499.99

SKU: IAG-ENG-S800

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The IAG Performance 800 BHP FA20 DIT Subaru Closed Deck Short Block is engineered for modified 2015–2021 Subaru WRX vehicles. It features a proprietary closed-deck cylinder support system to strengthen OEM FA20 cylinder walls for high-power builds. This short block is built with 100% new components, including new Subaru FA20 engine case halves machined for improved oiling.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandIAG
Part NumberIAG-ENG-S800
CategoryEngines and Components

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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