donor engine choices

[Redraider]

Hi guys,

I have tried to search this but can't get the search wording to get me what I need. Which is...........in reading here about putting an LS in my 51, what would be the best donor as far as oil pan/front accessory drive? Or does everyone get the engine they want and then swap in what is needed? Seems the correct choice to start would be simpler and cheaper, but I have no clue on how this is supposed to work!

I guess I need guidance on what the actual requirements areas far as oil pan and anything else that is a swap problem.

Anyway any help you can provide would be greatly appreciated.

Thanks

Redraider