2006 KJ wrote:
sorry.. but if i'm going to spend all that time and money swapping a motor in the KJ.. it's going to be a built LT1 or LS1.. you'll have to do the same thing as with a 4.7 and theres no replacement for a healthy chevy 350 smallblock and a T56 6-speed. or maybe one of the 383 strokers we have laying around

you'd have to do the mounts.. .but call painless and order all the computer/wiring you need.. keep the stock wiring for gauges, clutch slave, ect... probably need to move the battery but i think it would be do-able. more than enough room in there. just wonder how the tranny would come up through the body for the shift prospective
I believe the mounts are the same. IIRC some one actually started the process and gave up on it. Was about 1.5-2 years ago. The tranny shouldn't be an issue either. the 45RFE was a OEM tranny for the first gen KJ, and it will reside in the same spot as the 42RLE. So it and the T-case will mount up just like from the factory. It's the engine that sits farther forward, hence moving the radiator mount, and a custom radiator.