The IAG Stage 2 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 Stage 2 short block builds off the Stage 1 block's strengths by adding 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 and Stage 1 short blocks cannot support reliably.
Each IAG Stage 2 Short Block starts with brand new EJ25 Subaru 2.5L, 99.5mm stock bore engine case halves as standard. The case haves are carefullly 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 Stage 2 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 FSR 99.5mm Forged Pistons are carefully selected, measured, and installed to finish off the short block.
Stage 2 Short Block Includes:
Power: The IAG Stage 2 Short Block has a power output rating of 550 BHP
Additional Options Available:
PDF After Sale Document - Contains Shipping, Engine Care and Warranty Information
