Description: IAG 550 EJ25 2.5L BUILT SHORT BLOCK FOR SUBARU WRX, STI, LGT, FXT - 550BHP IAG 550 EJ25 2.5L BUILT SHORT BLOCK FOR SUBARU WRX, STI, LGT, FXT - 550BHP IAG 550 EJ25 2.5L SUBARU SHORT BLOCK DESIGNED FOR STRENGTH 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. BUILT WITH 100% NEW COMPONENTS 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 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 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. FORGED PISTONS, DESIGNED FOR BOOST Each IAG 550 Short Block features IAG Spec JE 99.5mm Forged Pistons. These 2618 T6 Alloy high-strength pistons have been specifically designed to support increased cylinder pressures which come with more boost. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Featuring smooth flowing radii on the domes and dishes, the design promotes excellent flame travel. The pistons are secured to the rods with .905 x 2.250 x .180 wall carbon steel wrist pins with Tru Arc locks. IAG 550 Short Block Includes: Case Halves Brand new Subaru OEM case halves 99.5mm stock bore Pistons IAG-Spec JE 99.5mm Forged Pistons, Ring Set, .180 Chromoly Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pin) Connecting Rods IAG-Spec H-Beam Rods with ARP2000 rod bolts Rod / Main Bearings ACL or King Race Bearings Crankshaft Standard New Subaru Nitride Treated 2017+ STI Crankshaft Case / Main Bolts Standard FHI Subaru case bolt Compression Ratio:8.5:1 on D Cylinder Heads (EJ255), 8.2:1 on B, V, and W EJ257 Heads with standard thickness gasket. Power: The IAG 550 Short Block has a power output rating of 550 BHP 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. Add to your order for an extra $125.99 SKU: IAG-ENG-S550 Availability: Usually Ships in 2 to 3 Weeks Shipping Shipping cost:Shipping is always FREE to the lower 48 states. Customers that reside in Puerto Rico, Hawaii, or Alaska must contact prior purchase for a custom shipping quote. Delivery time: Attention Florida residence! If you order before 2pm Mon-Fri, you will get your item(s) next day!! Small items will be shipped via USPS priority 1-2 business days Medium items will be shipped via UPS ground 1-5 business days Large items will be shipped via Freight 1-5 business days. Payment We accept the following payment methods: PayPal Credit or debit card Please contact us if you have any questions. About Us We are dedicated to bringing you the parts you need at the price you can afford. Our inventory is always growing and changing as we get new part outs often. Our dedicated staff is very knowledgeable, helpful, and resourceful. We want your buying experience here to be something to talk about with all your friends and family! We are also the leading used Subaru auto part retailers with the best customer service in the industry, lightning fast shipping, with extremely clean parts.
Price: 3999.99 USD
Location: Lakeland, Florida
End Time: 2024-08-26T23:06:24.000Z
Shipping Cost: 0 USD
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Brand: IAG Performance
Type: Engine Short Block
Number of Cylinders: 4
Engine Size: 2.5 L
Block Type: Flat
Manufacturer Part Number: IAG-ENG-S550
Country/Region of Manufacture: United States
Fuel Type: Gasoline