need some help

[the82k5]

i need some help guys i need to no wat i need to do a 454 swap with a th400 trans on my 82 k5 its all stock just a lift right now it has a 305 dont no the trans yet any feed back is welcome

 

[big pappa b]

Bolts right up. Will need exhaust, trans cross-member if different from the one in there

 

[Jester1]

How about motor mounts? Didn't gm use different mounts for sbc to bbc. They made the crossmember to take both but different mounts.

Am I correct on this?