Engines and Components Engines, Blocks and Components

IAG Performance

IAG 750 Closed Deck Long Block Engine

$13,348.34

SKU: I00A IAG-ENG-L750W

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In Stock
Ships by Jun 7
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Non-Returnable Item
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Description

The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are complete, valve cover to valve cover, crate engines designed as a "drop-in" solution. They feature a combination of IAG Performance 750 Closed Deck Short Block and IAG 750 Cylinder Head packages. All components are brand new, with no core charge required. This package is ideal for clients seeking an engine package to support up to 750 BHP applications. The IAG 750 long block utilizes a brand new EJ25 Subaru case converted to closed deck, bored and honed to 99.75mm. Internals include IAG-Spec JE FSR 2618 forged pistons, .210" 9130 pins, IAG-Spec Tuff H-Beam connecting rods with ARP 2000 rods bolts, and an OEM STI crankshaft. The block is paired with IAG 750 Pocket Ported Cylinder Heads, which are brand new Subaru OEM cylinder head castings, CNC machined and resurfaced. The heads are outfitted with GSC Standard Size Valves, GSC Viton Valve Stem Seals, GSC Valve Guides, IAG Stage 1 Valve Springs with Titanium Retainers, OEM Keepers, and GSC Billet Stage 1 camshafts. The package is completed with an 11mm ARP 625+ head stud set and all required gaskets. IAG offers a 12-month/12,000-mile workmanship warranty, which extends to 24-month/24,000-miles when installed and tuned by an IAG Certified Installer. Also available are EJ20 2.0L closed deck versions, or "Hybrid" EJ25 short block with chamber matched S20 2.0L EJ20 Cylinder heads for 02-05 USDM WRX owners.

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Specifications

BrandIAG Performance
Part NumberI00A IAG-ENG-L750W

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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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