IAG 500 EJ25 Long Block Engine with Stage 1 Heads:The IAG Performance Hand-Built 500 Subaru EJ25 Long Block Packages are a complete, valve cover to valve cover, crate engine. These engines offer significant ease of installation for customers seeking a complete “drop-in” engine package for their Subaru WRX, STI, Forester XT or Legacy GT. The Long Blocks feature a combination of our proven IAG Performance Short Block and Cylinder Head package, along with other race-proven components to complete the assembly. When paired with our Long Block Installation Packages, you 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.
The IAG 500 package is ideal for clients looking for a long block engine package to support up to 500 BHP applications. The IAG 500 long block features our highly popular Stage 1 short block that utilizes a brand new EJ25 Subaru case, 99.5mm IAG-Spec JE forged pistons, OEM STI Crank and STI connecting rods. The block is then paired up with our IAG Stage 1 Cylinder Head Package which features Subaru WRX STI OEM cylinder head castings and GSC valvetrain components. To complete the package, we add an 11mm ARP 2000 head stud set and all required gaskets for the final valve cover-to-valve cover assembly.
IAG’s Break-in Instructions MUST be followed, and the long block must be professionally installed for the 12 month/12,000 mile workmanship warranty to be applicable. If the previous engine experienced an internal failure then all oiling components (i.e. cooler, pump, pickup, cam gears, and solenoids, etc) as well as other necessary components as per your installer’s recommendations, must be replaced during installation.
IAG 500 Long Block Engine Includes:
Stage 1 Short Block:
Stage 1 Heads:
Gaskets, Hardware & Accessories:
Power: The IAG 500 Long Block has a power output rating of 500BHP.
*All IAG short blocks are balanced and blueprinted.