alfakarl

I'm in the process of swapping in a '01 4.2L to replace the tired '98 4.2L. I've come across a problem with the knock sensor, which in the '98 is on the lower passenger side of the block next to a freeze plug. The '01 has a bolt-thru type on the head. Can I just wire in the '01 knock sensor to my '98 wiring harness and leave it in the head?

Thanks!

itsmyfiveoh

karl was that the only issue you ran into? I am thinking of doing this same swap and want to know if it is worth while thanks alot

98_f150

Im doing a rebuild on my 98'. Is the 01' a better 4.2 then the 98' year? More power? better mileage or anything?

AlexK

did you find the answer?? im stuck in the same place!!