305A vs 305E install

[AZKen]

Silly question I know, but will I have any trouble dropping a 1963 305E into a 1960 K10 that had a 305A. Original motor mounts are in place on the 1960 GMC frame. Is the motor mounting system the same? brackets, etc?
Also: do all parts like manifolds, carbs, brackets, plumbing, distributor and pumps interchange? What does not interchange? Thanks

[BarryGMC]

Its more or less a straight swap.