i have a 1996 350 motor laying around with vortec heads would all my sensors work from my old, 305 and woudl it line up with the trans.???? what kind of water pump would i need????
and can i put a lt4 cam hot cam in that????

 

I don't see any problems doing anything you just suggested doing. Use the 305 water pump.

 

i should also add it came out of a yukon

 

It will still be the same block and heads aren't reverse cooled or anything.

 

Doesn't the stock Vortec heads have a lift limitation of .480" and the hot cam is .525" which is going to bend and break stuff. Also you should use the 350 knock sensor and ESC module to help eliminate some possible problems.

Knock Sensor: AC/Delco # 10456288
ESC Module: AC/Delco # 16128261

 

Not only that, the springs wont handle much over .420" lift. And you'll need the Scoggin Dickey Vortec TBI intake manifold.

Or you can sell those heads to someone else, and use some other 350 heads.