360 LA to Magnum swap, How hard is it?

I'm looking into the possibilities of doing a LA to magnum engine swap.
how easy is this, is it just a bolt in or do certain things need to get replaced when switching from a LA to a 360 Magnum engine?

My car is a 67 barracuda with a '74 360 (LA Block) with stock manifolds and Edelbrock 650 Thunder carb, backed by a 727. Will a '99 magnum engine with Edelbrock heads be an easy swap?

Can I re-use my current transmission, motor mounts, toque converter, carb, waterpump, powersteering, distributor, radiator, exhaust manifolds, etc... or do certain parts need to be swapped?

I haven't had time yet to properly search the forum so any input would be appreciated.

Thanks,