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    • Gorgeous billet Subaru EJ block from IAG

      If you want to know why billet blocks are a big deal read this article from early in the year. This particular block is a Subaru EJ block which was built by IAG Performance in Maryland who is well known for their Subaru work.


      One of the nice things about modifying cheaper imports is the amount of parts and quality tuners available to choose from.

      This is quite simply a work of art.

      This billet Subaru block is downright beautiful! The surfaces and contours provide rigidity improvements, and the closed desk design with ringed sleeves will provide support for much higher combustion pressure. Block clamping is significantly increased with second main bolts and much thicker mating surfaces.

      Bryant Crank, Steel O-Ring Head interface, 14mm head studs, Cosworth Valves, Springs, and Cams. Michael Roark and the guys at Extreme Turbo Systems will provide the 4" Intercooler and their kick ass precision 6870 kit.

      Thanks to Myles Kerr and Lucas English and English Racing, Rick Arbogast and the guys at IAG, Martin Donnon and Willall Racing Pty Ltd, and Perrin Performance. (and Darton Sleeves) Timothy Bailey and I will be cranking on the Cobb for this one.

      I don't think I'll be able to match the 1130whp of my GTR, but we will give it a shot.



































      This article was originally published in forum thread: Gorgeous billet Subaru EJ block from IAG started by Sticky View original post
      Comments 8 Comments
      1. Optigrab's Avatar
        Optigrab -
        Hopefully they will make one of these for the BRZ /86 engine
      1. subaru335i's Avatar
        subaru335i -
        That is my friend's engine haha. Dude has a seriously impressive stable of cars.

        This block has already proven it can take well over 1200whp with the right sized turbo. Jeff is just using a 6870 for street duty so won't push the block too hard. But the stronger material (you can actually weld it if something breaks), replaceable sleeves, and much better design for bearing support and oiling etc makes it a smart choice if you have the money.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by subaru335i Click here to enlarge
        That is my friend's engine haha. Dude has a seriously impressive stable of cars.

        This block has already proven it can take well over 1200whp with the right sized turbo. Jeff is just using a 6870 for street duty so won't push the block too hard. But the stronger material (you can actually weld it if something breaks), replaceable sleeves, and much better design for bearing support and oiling etc makes it a smart choice if you have the money.
        What I wouldn't give for a block like that for an S65.

        Well, maybe not $20k but I'd love for there to be a real solution someone would design.
      1. Sticky's Avatar
        Sticky -
      1. 93siro's Avatar
        93siro -
        Machined billet stuff is just pure porn for me. I used to take long glances at the billet compressor wheel on my turbo upgrades before installing.
      1. Sticky's Avatar
        Sticky -
        I want someone to make me a block like this... but it would cost, what, $20k?
      1. 93siro's Avatar
        93siro -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I want someone to make me a block like this... but it would cost, what, $20k?
        I would just charge the 20k for CAD working. It's very time consuming. Plus i bet you have to go through many revisions after prototypes made to get close to the actual design. Then comes the reinforcing part and how to improve on the original design... If you had an extra 100K i might consider doing the block for you Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        I would just charge the 20k for CAD working. It's very time consuming. Plus i bet you have to go through many revisions after prototypes made to get close to the actual design. Then comes the reinforcing part and how to improve on the original design... If you had an extra 100K i might consider doing the block for you Click here to enlarge
        I guess I'll just settle for 700 whp. Click here to enlarge