IAG 750 EJ25 Subaru Closed Deck Short Block For WRX STI LGT FXT - 750BHP
The IAG 750 Short Block starts with brand new Subaru 2.5L engine case halves. Our machinists machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts, transforming the block into a solid deck. Next, a deck pair of deck plates are attached and the short block is bored and honed to 99.75mm in our in-house Sunnen SV-30 computer controlled cylinder hone. IAG's in-house honing process allows us to set custom piston to wall clearances to ensure quiet operation and reduced oil consumption. The modified case halves are then assembled using a new 2017+ Subaru 2.5L nitride treated STI crankshaft and IAG-Spec Tuff H-Beam connecting rods with ARP rod bolts. IAG Short blocks feature ACL or King Race rod and main bearings and are all balanced and blueprinted. Finally, the case halves are sealed with new OEM main/case bolts and sealant. If you plan to use the IAG 750 Short Block with EJ20 Cylinder Heads, make sure to select the "Hybrid Pistons" option at checkout. These specially designed JE pistons allow the use of EJ20 cylinder heads without the requirement for a chamber matching service to be performed to the cylinder heads. This option is great for international clients who are not able to send their cylinder heads in for modification. This also works great for USDM EJ20 owners who prefer to use a 2.5l short block. The 9.5:1 Compression JE FSR piston set includes .905 x 2.250 straight wall carbon steel wrist pins with Tru Arc locks along with a complete ring set. The IAG 750 Short Block has a power output rating of 750 BHP All IAG Short Blocks are balanced and blueprinted Compression Ratio: 8.5:1 on D Cylinder Heads (EJ255), 8.2:1 on B, V and W EJ257 Heads with standard thickness gasket, 9.5:1 on S20 Heads. Vehicle Specific Saab: 9-2X 2005 - 2006 Subaru: Baja 2004 - 2006 Subaru: Forester 2004 - 2013 Subaru: Impreza 2002 - 2014 Subaru: Legacy 2005 - 2009 Subaru: Outback 2005 - 2009 Subaru: WRX 2012 - 2016 Subaru: WRX STI 2013 - 2021 Attributes: Brand Name: IAG Performance GTIN: 00887753904126 Assembled: Yes Assembly Lubricant Included: No Bore Diameter: 99.75 Connecting Rod Beam Style: H Beam Connecting Rod Material: T-6 Billet Aluminum Cylinder Quantity: 0 Engine Block Material: Aluminum Engine Oil Pump Included: No Engine Water Pump Included: No Flexplate Included: No Flywheel Included: No Fuel Type: All Grade Type: Performance Intake Manifold Included: No Oil Pan Included: No Piston Material: Forged Aluminum Piston Rings Included: Yes Piston Style: Dome Power Rating: 750 BHP Timing Cover Included: No Timing Set Included: No Valve Covers Included: No Windage Tray Included: No Wrist Pin Style: Full Floating Extended Information: Country of Origin: US Emissions : Emissions Compliance Exempt Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 21 x 17 x 21 inches Weight: 100 POUNDS PDF: