I know that due to the relocated spark plug on the p's you are supposed to use a GT40p specific header. However I recall some people saying that if you usea shorter sparkplug and 90 degree boots you can use other style headers with the p's. So my first question is will I be able to use the BBK unequal length shorties I currently have or will I have to change to the GT40p specific headers? I figured that I would ask before I went off and bought the heads and then had to go get new headers.
Also any of you guys happen to know what the valve sizes are on a set of GT40ps from a 98 explorer?
Thanks
Also any of you guys happen to know what the valve sizes are on a set of GT40ps from a 98 explorer?
Thanks