2000 to 99

[OGCollard]

Is it possible to put a 2000 engine into a 99 chasis? I mean i know it would fit but what considerations need to be taken into account the 99 was a distribitor ignition and the 2000 has the electonic ignition rail? I forget what it is technically called.

[4.3LXJ]

Yes there are some differences. Two ways you can go I think. One is to put the 00 in and transfer the ECM and wiring harness with it. Not sure on the tranny wiring, but should be compatible. the other is to swap the intake, sensors flywheel/flex plate off the 99. The flex plate may have the magnetic pick up in a different position. I am told the place is machined for the distributor and they can be swapped over