Jordan,
either way you look at it, your SB <> or his BB
Your going to need all forged internals anyway for this supercalafristic turbo you got.
No sense beating around the bush here, build yours or take a look at this 454 and see what it's got, you can't post or wish this dudes motor into something it is or ain't - theres noway of knowing with out taking it apart period.