Engine Builds

IAG 550 EJ25 2.5L SUBARU SHORT BLOCK { "__shgImageV2Elements": { "uuid": "s-0f46e105-cb01-4bbf-b05a-1133a4bff5b4" } } BUILT FOR BOOST Designed for modified EJ25 Subarus, the IAG 550...

IAG 750 EJ25 2.5L SUBARU SHORT BLOCK window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window.SHOGUN_IMAGE_ELEMENTS.push({ uuid: 's-746264b6-6afe-43ed-90c4-3430111a1dc3' }) ...

IAG 950 EJ25 2.5L SUBARU SHORT BLOCK { "__shgImageElements": { "uuid": "s-2b23c85b-2d6b-499b-84ba-196d50d44763" } } RACE ON SUNDAY, WORK ON MONDAY The IAG 950 Short Block is the ultimate...

IAG 950 EJ25 2.35L DESTROKED CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT - 950 BHP { "__shgImageV2Elements": { "uuid": "s-6d01b402-0928-4639-8a45-d9f0b1d08b45" } } THE IAG 950 EJ25 2.35L...

IAG 1150 EJ25 2.5L SUBARU SHORT BLOCK { "__shgImageElements": { "uuid": "s-c654e6f4-6f53-4f14-8ea4-ae528a102c9d" } } BUILT TO WITHSTAND HIGH HORSEPOWER DRAG RACING The IAG 1150 Short Block...

IAG 1150 HIGH COMPRESSION 2.5L SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT - 1150 BHP { "__shgImageV2Elements": { "uuid": "s-7fcaecd8-65b6-4a9e-97ef-11436ae01911" } } THE IAG...

IAG 1150 EJ25 2.35L DESTROKED SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT - 1150 BHP { "__shgImageV2Elements": { "uuid": "s-3a308b35-839d-4f77-8935-230b6ae607ce" } } THE IAG 1150...

IAG PERFORMANCE / CREST CNC 2.5L SUBARU BILLET ALUMINUM SHORT BLOCK 1150+ BHP { "__shgImageV2Elements": { "uuid": "s-0bf8bc47-fdd2-47a2-9d0e-3be356b90623" } } THE IAG PERFORMANCE / CREST...

IAG 1000 FA24 SUBARU CLOSED DECK SHORT BLOCK FOR 2022-24 WRX - 1000 BHP { "__shgImageV2Elements": { "uuid": "s-b7ebe405-2b24-4c9a-aee3-847202de8897" } } THE ULTIMATE “WEEKEND RACER” ...

IAG 600 FA20 DIT 2.0L SUBARU SHORT BLOCK { "__shgImageElements": { "uuid": "s-bf1fb559-df2c-4799-a256-8799dfda2f3d" } } DESIGNED FOR STRENGTH The IAG 600 Short Block is designed for stock...

IAG 600 FA20 FT86/BRZ 2.0L SUBARU SHORT BLOCK WITH 10.5:1 LOW COMPRESSION window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window.SHOGUN_IMAGE_ELEMENTS.push({ uuid:...

IAG 600 FA20 FT86/BRZ 2.0L SUBARU SHORT BLOCK WITH 12.5:1 STANDARD COMPRESSION window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window.SHOGUN_IMAGE_ELEMENTS.push({ uuid:...

IAG 800 FA20 DIT 2.0L SUBARU SHORT BLOCK { "__shgImageElements": { "uuid": "s-e2f1652a-a386-436b-8a68-8e48d60baf9d" } } GET MORE OUT OF YOUR FA20 WRX The IAG 800 Short Block is designed for...

IAG 800 FA20 FT86/BRZ 2.0L SUBARU SHORT BLOCK WITH 10.5:1 LOW COMPRESSION window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window.SHOGUN_IMAGE_ELEMENTS.push({ uuid:...

IAG 800 FA20 FT86/BRZ 2.0L SUBARU SHORT BLOCK WITH 12.5:1 STANDARD COMPRESSION window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window.SHOGUN_IMAGE_ELEMENTS.push({ uuid:...

IAG 1000 FA20 DIT SUBARU CLOSED DECK SHORT BLOCK FOR 2015-21 WRX - 1000 BHP { "__shgImageV3Elements": { "uuid": "s-1589b55a-4c3a-49e0-aeb3-02719db1f1ee" } } SERIOUS POWER. REAL-WORLD...

IAG 550 LONG BLOCK ENGINE WITH IAG 550 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT { "__shgImageElements": { "uuid": "s-168b98c4-7a24-4a40-a38c-0e7f0dcc8509" } } A "DROP-IN" SOLUTION The...

IAG 750 LONG BLOCK ENGINE WITH IAG 750 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT { "__shgImageElements": { "uuid": "s-71d178f9-899e-4ffc-af59-6a333a24eb8d" } } A "DROP-IN" SOLUTION The...

IAG 950 LONG BLOCK ENGINE WITH IAG 950 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT { "__shgImageElements": { "uuid": "s-2c77a939-aba7-44f6-8418-1aa2700e73e9" } } A "DROP-IN" SOLUTION The...

IAG 950 2.35L DESTROKED LONG BLOCK ENGINE W/ IAG 950 HEADS { "__shgImageV2Elements": { "uuid": "s-1587427b-883c-44e9-bc50-b810b28d61a6" } } DROP IN AND DRIVE The IAG Performance hand-built...

IAG 1150 LONG BLOCK ENGINE WITH IAG 1150 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT { "__shgImageElements": { "uuid": "s-09faa8df-c8af-47f8-961e-774ecfe3108c" } } A "DROP-IN" SOLUTION The...

IAG 1150 2.35L DESTROKED LONG BLOCK ENGINE W/ IAG 1150 HEADS { "__shgImageV2Elements": { "uuid": "s-06c34912-0134-423e-a399-5be493b7446d" } } DROP IN AND DRIVE The IAG Performance hand-built...

IAG 600 FA20F DIT TIMED LONG BLOCK FOR 2015-2021 WRX { "__shgImageElements": { "uuid": "s-7cd00acd-7460-4a9a-bec2-af4f062684fc" } } A "DROP-IN" SOLUTION The IAG Performance...

IAG 800 FA20F DIT TIMED LONG BLOCK FOR 2015-2021 WRX { "__shgImageElements": { "uuid": "s-fc99c78b-7adf-4bf2-84a5-4597e22c2f1d" } } A "DROP-IN" SOLUTION The IAG Performance Hand-Built 800 Subaru...

IAG FIRE-LOCK 2.5L SUBARU EJ25 HEAD GASKETS { "__shgImageElements": { "uuid": "s-4a0223c6-24ac-4678-abcf-c1f968580b14" } } HIGH HORSEPOWER & HIGH BOOST Our proprietary "Fire-Lock" Head gasket...

The IAG Performance Fire-Lock head gasket solution was created after years of research and development testing to prevent head gasket failure on high horsepower and high boost Subaru EJ Series engines. This solution is loosely derived from diesel...

IAG FIRE-LOCK 2.0L SUBARU FA20 HEAD GASKETS { "__shgImageV2Elements": { "uuid": "s-2faab2af-7bef-4fa0-a4c3-c7a15f9aad06" } } HIGH HORSEPOWER & HIGH BOOST Our proprietary "Fire-Lock" Head...

IAG FIRE-LOCK 2.4L SUBARU FA24 HEAD GASKETS { "__shgImageV2Elements": { "uuid": "s-3ff14dd3-7c6b-40f2-9c24-c9ec90361927" } } HIGH HORSEPOWER & HIGH BOOST Our proprietary "Fire-Lock" Head...

The IAG Performance 1/2 Inch Head Stud Set is manufactured by ARP and is designed for use on high horsepower Subaru EJ25, FA20, and FA20 DIT engines. Due to the larger size of the head studs, a greater load can be placed on the fasteners and in turn it...

IAG's / ARP 14mm Head Stud Set is designed for use on high horsepower Subaru engines. The larger size of the stud increases its load capacity which in turn helps to prevent the cylinder head from lifting and creating head gasket failures. The oversized...