the last time i put a 454 into anything it was an 81 trans am it fit just nicely with some talking to(locking the tranny into place )on the 2 speed powerglide was the hard part, all we had to do was take the mounts off of the 350 we took out, in the first place and it went in good, and roasted the tires pretty near of the rims hehehe. there shouldnt be much trouble i dont think.