I want to put a Chevy 350 in my TJ. I was just wondering how difficult of a propostion that is. Other than the mating in to the tranny, headers, radiator, motor mounts and figuring out the wiring is ther much more that has to be bought? Thanks in advance for any help.  

well what you do is call advanced adapters tell them your story, then call painless wireing and tell them your story, bolt in install, with money out of the poket  

think about the extra weight. does the frame need extra strength, and what about supension. also the jeep will be very front heavy. i thought about a diesel swap but it was to much extra weight. the larger tires and extra weight will take their toll on the brakes to.  

"I was just wondering how difficult of a propostion that is."

Depends on how much  you want to spend, how good you are at turning wrenches, and how much of the stock electrical you want to keep...

Keep us posted!