IAG Performance 750 Closed Deck EJ25 Long Block w/ IAG 750 Heads 2002-2014 WRX / 2004-2021 STI / 2004-2013 Forester XT / 2005-2009 Legacy GT

IAG Performance 750 Closed Deck EJ25 Long Block w/ IAG 750 Heads 2002-2014 WRX / 2004-2021 STI / 2004-2013 Forester XT / 2005-2009 Legacy GT

This IAG Performance 750 long block is a complete EJ25 crate engine, valve cover to valve cover, for the 2002-2014 WRX, 2004-2021 STI, 2004-2013 Forester XT and 2005-2009 Legacy GT. It pairs the IAG 750 closed deck short block with IAG 750 CNC pocket ported heads. IAG rates it for up to 750 BHP and aims it at weekend racing and track use.

What's included

• Short block: Brand new Subaru OEM EJ25 case halves converted to closed deck, bored and honed to 99.75mm
• Pistons: IAG-Spec JE FSR 99.75mm 2618 forged, asymmetrical skirt, ring set, .210" 9310 steel wrist pins, clips, Perfect Skirt coating and offset wrist pins
• Rods and crank: IAG-Spec Tuff H-Beam rods with ARP2000 bolts; new Subaru nitride-treated 2017+ STI crankshaft
• Bearings and bolts: ACL or King race bearings; standard FHI Subaru case bolts; balanced and blueprinted
• Heads: Brand new Subaru OEM WRX STI castings, CNC pocket ported, resurfaced, multi-angle valve job, machined cam lobe clearance, ultrasonic cleaning
• Valvetrain: GSC 36mm intake and 32mm exhaust valves, GSC single valve springs with titanium retainers, GSC valve stem seals, OEM guides, OEM lifter buckets, final lash set
• Camshafts: GSC Stage 1 billet
• Hardware: ARP 625+ 11mm head stud set; OEM head gaskets, valve cover gaskets, cam seals and valve covers; wrist pin seal, rear main seal and separator kit; crankshaft Woodruff key

Before you order

Listed for the 2002-2014 WRX, 2004-2021 STI, 2004-2013 Forester XT and 2005-2009 Legacy GT. Pocket porting opens and blends only the area under the valve seat, keeping port velocity. As a long block, it does not include manifolds, sensors, injectors or external accessories. Send us your VIN or engine code and we will confirm fitment before you order.

See also: Subaru oil pickup tube problems · FA20 vs EJ25 · head studs vs head bolts · used vs rebuilt engines · engine replacement checklist · what comes with a long block · EJ257 problems · is it worth replacing an engine? · Subaru head gasket problems and ringland failure · signs of a blown head gasket · Subaru WRX and STI parts · EJ255 vs EJ257 · subaru ej25 / ej257 · IAG Performance Subaru blocks and all engines by engine code.

Shipping and returns

Shipping is a flat $80.00 per order to US addresses, and returns are free within 15 days of delivery. Questions before you order? Ask a parts specialist.