My concern with a basic passenger car block is how much meat there is for the lifters when they're taken that much further out plus the OD of the bronze bushing for oil control. Here's what mine look like with a standard 440 block, .904 lifters plus bronze bushings.
I recently saw a hemi block w/ lifter bushings that broke the whole lifter boss off.
It was an early megablock that didn't have all the extra meat cast into the bosses. It broke on either #1 or #2 cylinder...can't recall exactly which.
