Engine swap 99 to 03

Will a 2003 2.7 with coil over plugs swap out with my 99 2.7 with two separate coils by using my wiring harness and my two coils and sensors if so what else might I have to change

 

The basic head and engine are essentially the same. You can swap out the longblock and use your original wiring and parts. I would however make sure that both heads have the same number of ports. In the 1sg gen the 2.7 came with either 4 ports or 8 ports in the intake and head.

 

How do I tell if it is 4 ports or eight by looking at engines

 

I was only able to tell after I unbolted the intake manifold. I am sure there is a way to tell without unbolting, but I don't know what it is.