nathansmith50

Say a person wanted to swap in a 4V from a mark VIII into their 96 GT.

Would one be able to use their existing harness and ECU?

I know the harness would require some modification to lengthen the coil wires. but is it really as simple as that?

I ask because i'm about to put a 4.6 into a fox...i have a complete donor car from which i intend to take all the parts...but i can get a 32V from a lincoln pretty cheap. so if it's as simple as lengthening a couple wires...adding another plug to the bottom of the alternator and having it tuned i think i will go that route.

school boy

you pretty much nailed it. I have seen ppl run the factory tune from the 96-98 gt but I highly recommend a tune. you will need a cobra 96-98 intake and any 96-04 cobra headers/exhaust manifolds

JC316

Yep, pretty much. I ran on the stock GT tune for the whole time I had the car and it ran fine.

nathansmith50

now there's an expense i didn't figure. the intake is pretty pricy. manifolds shouldn't be too bad.

school boy

jc there is the guru around here on the swap and helped several ppl on it. you could run the 97-98 mark viii intake manifold. its not as nice as the cobra unit but gets the job done

GTgeezer

I there a big difference between the V111 V4 and the Mustang 4V? would the scenario be the same for 4V swap into an 01 GT?

school boy

The main difference in the b headed long blocks is the cams, they are a little milder, and the mark viii's cam with the cast cranks instead of the forged cobra cranks

JC316

Woot! I have achieved guru status. school boy is correct, you can run the Mark VIII intake just fine. The Cobra intake might pick up a few HP, but IMO it's not worth the cost. You can even run the older 93-96 intake if you want, but the intake tube will be tricky.

Z28KLR

Need IMRC deletes also, right? My understanding is the 2V pcm won't work with the IMRC's...

school boy

youre right, forgot all about those