Description
The IAG 550 Short Block is designed for modified EJ25 Subarus that need a stronger short block to support increased cylinder pressures created by additional boost pressure. The IAG 550 short block features IAG Spec H-Beam forged connecting rods. The upgraded connecting rods and race bearings are able to support additional engine load produced by larger turbochargers or increased boost which the OEM STI rods found in the Stock short blocks cannot support reliably. Each IAG 550 Short Block starts with brand new EJ25 Subaru 2.5L, 99.5mm stock bore engine case halves as standard. The case haves are carefully measured and assembled using a new 2017+ Subaru 2.5L nitride treated STI crankshaft, which is matched to ACL or King race main bearings. The IAG 550 Short Block features IAG Spec H-Beam Connecting Rods with ARP2000 rod bolts, along with ACL or King race rod bearings. The case halves are sealed with new OEM main case bolts and sealant. Finally, IAG Spec JE 99.5mm Forged Pistons are carefully selected, measured, and installed to finish off the short block.
- The IAG 550 Short Block has a power output rating of 550 BHP
- All IAG Short Blocks are balanced and blueprinted
- Saab: 9-2X 2005 - 2006 Subaru: Baja 2004 - 2006 Subaru: Forester 2004 - 2013 Subaru: Impreza 2002 - 2014 Subaru: Legacy 2005 - 2012 Subaru: Outback 2005 - 2009 Subaru: WRX STI 2015 - 2021
Attributes:
- Brand Name: IAG Performance
- GTIN: 00887753904102
- Assembled: Yes
- Assembly Lubricant Included: No
- Bore Diameter: 99.5
- Compression Ratio: 9.3:1 on D Cylinder Heads, 8.8:1 on B, V, and W EJ257 Heads, 9.4:1 on S20 Cylinder Heads, 9.0:1 on D Cylinder Heads, 8.5:1 on B, V, and W EJ257 Heads, 9.1:1 on S20 Cylinder Heads
- 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: 550 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:
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