Product Description
- 2002-2005 WRX
- 2006-2007 WRX
- 2008-2014 WRX
- 2004-2007 STi
- 2008-2014 STi
- 2015-2021 STi
- 2004-2008 Forester XT
- 2009-2013 Forester XT
- 2005-2009 Legacy GT
- Brand: IAG Performance
- Manufacturer's Part Number: IAG-ENG-1611
- Primary Material: Billet Aluminum
- Manufacturer's Warranty: 12 Months
- Superseded From: IAG-ENG-1610
- UPC: 887753778178
- GTIN: 00887753778178
- Condition: New Product
FITMENTS:
Subaru
| Manufacturer's Description: IAG / Willall Stage X Billet Aluminum EJ25 Subaru Short Block Using the same world-leading technology found in Willall's incredible billet GT-R block, the billet EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness that exists in max-power builds. The Stage "X" Block is a complete short block built on the Willall billet platform, which also includes pistons, rods, bearings, crank, bore/hone, case bolts, line hone, and final assembly and blueprinting. Stage X Billet EJ25 Case Features: Machined from solid billet 6061-T6 Aerospace grade aluminum Darton Ductile iron sleeves Increased material thickness in all known weak points (around head studs, bottom end location) Unique 4 bolt bottom end strengthening Threads are rolled into the block rather than conventionally cut for much greater strength Full cooling system operation Radiused coolant and oil galleries for improved flow and less foaming/turbulence Fits all factory engine bay ancillaries (i.e. AC/PS/etc.) Multiple Times stiffer and stronger than the stock case Precision machined for a superior surface finish Hard anodized to avoid marking or straining IAG Stage X Complete Shortblock Includes: Case - WREJBB Billet / Sleeved Case Halves Fire-Lock - IAG Fire-Lock receiver groove machining, latest solution to prevent head gasket failure on high horsepower and high boost Subaru's - *IAG Fire-Lock head gaskets required Machining - Machined for 14mm Head Studs *(Studs sold separately / Note the proper head gaskets or head gasket modifications are required for proper fitment with 14mm studs. Pistons - IAG-Spec JE FSR 99.75mm 2618 Forged Pistons, Electro-nickel Plated Tops & Ring area, Ring Set, .250" / .927" H13 Wrist Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pins) Connecting Rods - IAG-Spec +2mm Tri-Beam w/ ARP625+ Rod Bolts Rod/Main Bearings - ACL/King Race Bearings Crankshaft - Manley Billet Crank Case / Main Bolts - ARP Main Bolts Additional Options Available: Head Studs - IAG / ARP Spec 14mm head studs, nuts, and washers - $550 Oil Pumps - Subaru JDM 12mm Oil Pump - $219 / OEM Subaru 11mm Oil Pump - $199.95 IAG Oil Pickup - Upgraded oil pickup featuring heavy gauge steel tubing, 2 point bracket & mesh filter - $129.99 Hardware / Seal Option - $105.99 (Includes: Wrist pin plugs, washers, separator cover, bolts, etc. In case you don't want to transfer from the original engine). Required: *IAG Fire-Lock .051" Head Gaskets with IAG-Spec Alloy Ring Set* PN# IAG-ENG-1740 14mm Head Studs Compression Ratio: 8.5:1 on D Cylinder Heads (EJ255) 8.2:1 on B, V and W EJ257 Heads with standard thickness gasket. The IAG / Willall Stage X Short Block has a power output rating of 1100+BHP. *All IAG short blocks are balanced and blueprinted. |
Inventory Updated Daily
