96GTnate

So witch would be easier? A pi swap or just dropping a pi motor in? I can rather buy the heads and intake to do the swap or I can just buy the complete motor. It's out of a 2002 mustang GT. If I did the engine swap would I need to change out the computers? What do you guys think?

Sxynerd

No you don't need a new ECU. As a matter of fact you can't use another ECU because of the PATS system. If you've ever taken apart a V8 SOHC engine then you'll know that an engine swap is 100x easier. Use the Cars wiring harness.

You'll need a tune as much as you would've if doing the Head swap. What great about the complete engine is you'll get back lots of used up miles. (I went from 101k to 30k on the new engine) Also you'll be able to put on a S/C and not have to worry about the increased compression.

98redstang

the pi swap would be easier to do but there are advantages to a whole motor swap as mentioned above^

Sxynerd

Since when is pulling the heads off easier than pulling the engine? lol

10inch Terror

What mileage on the NPI motor currently? What are plans down the road.....N/A or forced induction? If staying N/A..it would be better to do the PI head swap and gain the added compression. If going forced induction....do the motor swap.

Sxynerd

But what about the limited Cam selection because of the PTV clearance?

10inch Terror

PTV issues arise because the valves hit the CROWN of the piston, not the dish part. It is the same on NPI vs PI. Plus my cams work great with the NPI bottom end...haha.

Sxynerd

I apologize for questioning you Jedi Master!

Zoie_daGT

I say that swapping engines will be easier but, the PI swap will prob. be cheaper. They will be close though. It depends on what you want w/ your car too. mileage, etc.....

10inch Terror

I'll let it slide this time.