
IAG 950 2.35L Destroked Long Block Engine W/ IAG 950 W Heads For 2008-18 STI
The IAG Performance hand-built Subaru 950 2.35L Destroked Long Block Engine package is a complete, valve cover to valve cover, crate engine. This engine provides a straightforward "drop-in" solution for those looking to upgrade their 2008-2018 Subaru STI. This long block features a combination of our proven IAG EJ25 2.35L Destroked Closed Deck Short Block and IAG 950 Cylinder Head packages, along with a full range of carefully selected high-performance components to complete the assembly. When paired with our Long Block Installation Packages, you’ll have a true plug-and-play solution to get you back on the road, FAST! All components included are BRAND NEW and there is NEVER A CORE CHARGE required. With +2 longer rods, and 2.0L FHI crankshaft, IAG’s Destroked Long Block decreases piston speed, optimizing the rod-to-stroke ratio. This adjustment enhances key engine dynamics such as aspiration and combustion efficiency, while minimizing component wear. In terms of performance, this means increased power output, extended ring life, and the ability to rev higher—making this long block an ideal choice for track days, rally events, or drag racing applications. These engines offer significant ease of installation for customers seeking a complete "drop-in" engine package for their Subaru STI. Vehicle Specific Subaru: Impreza 2008 - 2014 Subaru: WRX STI 2013 - 2018 Attributes: Brand Name: IAG Performance GTIN: 00887753983800 Assembled: Yes Assembly Lubricant Included: No Bore Diameter: 99.75 CNC-Machined Combustion Chamber: Yes CNC-Machined Exhaust Runner: Yes CNC-Machined Intake Runner: Yes Connecting Rod Beam Style: H Beam Connecting Rod Material: Forged Steel Crankshaft Material: Aluminum Cylinder Head Material: Aluminum Engine Block Material: Aluminum Engine Oil Pump Included: No Engine Water Pump Included: No Exhaust Valve Diameter: 33 Exhaust Valve Length: 104.25 Exhaust Valve Material: Stainless Steel Exhaust Valve Stem Diameter: 6 Flexplate Included: No Flywheel Included: No Fuel Injectors Included: No Fuel Type: All Grade Type: Performance Intake Valve Length: 104 Intake Valve Material: Stainless Steel Intake Valve Stem Diameter: 6 Oil Pan Included: No Piston Material: Aluminum Piston Rings Included: Yes Piston Style: Dome Power Rating: 950 BHP Timing Cover Included: No Timing Set Included: No Valve Covers Included: Yes Valve Seal Material: Viton Valve Seals Included: Yes Valve Spring Retainer Material: Titanium Valve Springs Included: Yes Valves Included: Yes 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: 46 x 32 x 28 inches Weight: 285 POUNDS PDF: