Originally Posted by 93H22ACX
Actually Bee, from what I read-up on HT.... the H23 doesn't have the FRM sleeves that the H22 does... either does the F22 and F23... only the H22 and S2k have the "exotic" sleeves as far as I know.
I just did an F22 build on stock sleeves and custom-sized Wiesco pistons from Race Engineering. We didn't sleeve the block on it. For a minute I was talking to Mahle about pistons, but then realized I did not need the "special ones".
Most of your H23 internals will be custom dimension that no place has on-the-shelf... like Bee said.
Hope that helps.