Our team of certified Subaru specialists at IAG Performance takes great care in assembling each IAG Stage X Short Block. Our hand-assembled short blocks make it simple to upgrade your EJ25 Subaru engine. Just leave the technical work to us, and we’ll provide you with a high-quality short block that’s ready for installation 🤝 | IAG Performance
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Our team of certified Subaru specialists at IAG Performance tak…
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The IAG Stage 2.5 Short Block starts with brand new Subaru 2.5L engine case halves. IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. Next, the short block is Deck Plate bored and honed to 99.75mm in our in-house Sunnen SV-30 the most advanced automotive cylinder hone available. lAG's in-house hon
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NEW PRODUCT RELEASE: Introducing the IAG Stage 2.5 International Hybrid Subaru EJ25 Closed Deck Short Block https://www.iagperformance.com/iag-stage-2-5-international-hybrid-ej25-subaru-closed-deck-short-block-for-use-w-ej20-heads/ The Hybrid EJ25 Short Block is designed for enthusiasts that want to increase the displacement and low end torque of their vehicle that originally was equipped with the EJ20 2.0L engine. The Hybrid 2.5L features pistons that are designed to lower compression and match
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We finally have IAG Stage X / Crest CNC billet aluminum short blocks back in stock! Rated for 1100 BHP these are the ultimate Subaru engine package for those who want nothing but the best 🙌 🤩 | IAG Performance
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The IAG 550 short block is built with IAG custom spec H-Beam forged connecting rods. These upgraded connecting rods, along with race bearings, can handle the increased engine load from larger turbochargers or higher boost levels—something the OEM STI rods in stock short blocks cannot reliably manage. This feature is just one of the many reasons why an IAG short block makes a superior EJ25 engine for our customers. 💪 | IAG Performance
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