IAG Stage 1 Short Block
The IAG Stage 1 Short Block is perfect for lightly modified EJ25 Subaru's that need a basic and reliable performance short block. Subaru turbo engines are commonly known for piston ring land failures and if gone unchecked lead to rod knock and total engine failure due to oil starvation from blow by. IAG's Stage 1 Short Block includes upgraded forged pistons along with performance main and rod bearings that replace the OEM components that are prone to common failure on Stage 2 and up vehicles. Each IAG Stage 1 Short Block starts with a new Subaru 2.5L 99.5mm bore EJ25 engine case halves as standard. The short block is measured and assembled using a new 2017+ Nitride Treated Subaru 2.5L STI crankshaft that is matched to ACL or King main bearings. Early style OEM STI rods are utilized along with ACL or King rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, 99.5mm IAG-Spec JE Forged Pistons are spec'd and installed finishing off the short block.
Stage 1 Short Block Includes:
Additional Options Available:
Power: The IAG Stage 1 Short Block has a power output rating of 475BHP.
*All IAG short blocks are balanced and blueprinted.
Compression Ratio: 8.5:1 on D Cylinder Heads (EJ255)
Compression Ratio: 8.2:1 on B, V and W EJ257 Heads with standard thickness gasket.
Hardware / Seal Option:
Not planning on reusing your original short block service plugs and covers? IAG offers a simple comprehensive cover and seal kit that includes (1) Rear main seal, (3) OEM wrist pin plugs, (3) OEM wrist pin plug washers, (1) OEM separator cover, (6) OEM separator cover bolts, (1) OEM wrist pin service cover, (1) OEM wrist pin service cover O-ring and (2) OEM wrist pin service cover screws. *If you are reusing your original wrist pin service plugs and covers always replace the (3) OEM wrist pin plug washers and (1) wrist pin service cover O-ring before installing a short block to avoid potential leaks. *Never reuse a rear main seal on a new short block.
IAG SHORT BLOCK WARRANTY INFORMATION, TERMS & CONDITIONS
IAG Performance is confident in our products and services and we proudly stand behind our workmanship. Therefore, we offer a limited warranty against defects in workmanship or materials, covering both parts and labor, for a standard period of 1-Year/12,000-Miles or an enhanced warranty of 2-Years/24,000-Miles if installed by an IAG Certified Engine Installer.
IAG (Standard) Short Block Warranty Limitations are as follows:
IAG Certified Engine Installer (Enhanced) Warranty Limitations are as follows:
IAG Short Block Warranty does NOT cover:
Standard Warranty Claim Procedure
All Standard Warranty claims must be directed to IAG Performance for assignment of a return merchandise authorization number (RMA). Following the issuance of an RMA claim number, IAG requires the engine to be returned to our facility for inspection and final determination of claim eligibility. The client is responsible for all shipping and handling costs to return the engine back to IAG. Upon receipt of the engine, IAG will disassemble the engine to determine if product manufacturing, assembly, parts defect, improper installation, or improper tuning directly or indirectly caused the engine to prematurely fail. After engine teardown is complete IAG will determine whether warranty coverage applies.
Enhanced Warranty Claim Procedure
All Enhanced Warranty claims must be directed to an IAG Certified Engine Installer for assignment of a return merchandise authorization number (RMA). Following the issuance of an RMA claim number, IAG requires the engine to be returned to our facility for inspection and final determination of claim eligibility. The client must authorize the Certified Engine Installer to remove the engine from the vehicle. The client is responsible for all shipping and handling costs to return the engine to IAG. Upon receipt of the engine, IAG will disassemble the engine to determine the cause of failure. After engine teardown is complete, IAG will determine whether warranty coverage applies. If the engine is deemed to be covered under warranty, IAG will reimburse the Certified Engine Installer for a pre-determined cost of labor. If the engine is not deemed to be covered under this limited warranty, the client will be responsible for all labor costs associated with the removal and reinstallation of the engine or components.