[kc9dre]

I just did this conversion on an 98 transsport, same engine. I went to Ebay and purchased a 3.4L from LKQ. Was out of an 04 Venture. The fuel injection system is different and the camshaft is different, along with the flywheel AND the the newer engines do not have the low oil sensor in the bottom of the oil pan. I took no chances and changed the camshaft with a new from advance Auto $175. I used my fuel injection system off the old engine. and all the externally different items as well. MAKE SURE YOU LABEL ALL THE SENSOR POSITIONS on your ewiring harness, the "professional" that I had install it did not do this and I have spent that last few months figureing out what sensors he hooked up wrong... For direct interchange with no changeover, 2002 to 1997 If I remember correctly with interchange flawlessly. You can always question your local GM parts counter guy. They can look up the information easily and you don't have to buy anything for them...

In my opinion I think you could go with out changing the CAM. As I said I did it one because my "pro" said it was different, and two. I was to lazy to do it myself...