I'm just about done swapping the engine out of my 97 GTP. I'm replacing it with another L67 from a 2002 GTP. I've had to replace the alternator because of the different designs, but other than that, are there any other pieces that need to be swapped? The engine that I got was only the long block so I'm using some of original bolt-ons including the 97 PCM and wiring harness. The wiring harness looks like it hooks up just fine. My questions are:

  • Are there any differences that I'm going to need to be aware of between the wiring harnesses if I'm using the 97 harness?
  • The BBV connects via vacuum line to something on top of the SC that has two additional nipples. Are the hoses plugged into it interchangeable and what are the other two items that plug into it? I think one is the vacuum brake booster but am stumped on the other one.
  • Where is the "To Accessory" vacuum line connection?
  • When connecting the battery, what could cause wires to smoke when connecting the negative cable to the battery?


Thanks for the help!!