I have been eyeballing the new 415 Magnum motor from Indy for my 69 Dart. This question has prob been answered before but couldn't find it via the search.

Can I use the water pump housing and all accessories/brackets off my 340? I would like to retain all of the 69 style stuff. I know the Magnum uses a counter-rotating water pump etc. Also I have heard that the LA valve covers will go onto a Magnum head anyone use them? Any issues with leaks?
Thanks