Author Topic: Trying to motor swap a 98 gt need help (Read 3309 times)

nasty98 · « **on:** June 07, 2009, 11:30:52 AM »

I am trying to swap the 4.6l sohc cause it needs head work and I want more power, so I want advice of what I would have to do in order to swap a later model cobra motor in it or maybe even the 5.4l. I don't know what I will need to make it work and I would like some help.

Soaring · « **Reply #1 on:** June 07, 2009, 03:34:26 PM »

For the Cobra swap, it will run off your existing wiring harness (need to lengthen the coolant temp harness and coil pack). It'll run off your stock ECU, but i do suggest getting an SCT tune.

It's an easy swap, provided you get all the accessories with it.

Welcome to the site Nasty.

nasty98 · « **Reply #2 on:** June 07, 2009, 04:59:37 PM »

what is the allowed year I can go up to?

03SoniCobra · « **Reply #3 on:** June 08, 2009, 02:36:46 PM »

im not sure about a cobra/lightning engine/trans even fitting into a 98 without modifying the motor mounts....but whatever engine you get, make sure you get the main wiring harness, ECU, PCM, Steering column, Key, & Gauge Cluster...you will need all this stuff because of the PATS.

nasty98 · « **Reply #4 on:** June 08, 2009, 04:40:13 PM »

but I would imagine that it would bolt right up cause its a 4.6 as well, but I would have to make sure everything is copastetic if not then I'm without a whip