I was wondering if anyone has done this. Any pit falls? Valve shrouding, springs etc. So far I am thinking Manley SBC valves, BBC springs and keepers and ream out the valve guides to fit the valves.
I was also wondering if anyone looked into adapting the Ford Pedistal type roller rockers onto the 4.0L head. Same ratio, but I haven't heard any talk of this. I looked into other roller rockers, but very expensive or they don't have a supplier at the moment. Or possibly Crower (rail type).
I am in the process of swapping in a 2003 4.0 out of a Grand Cherokee into an 88 Comanche. I am thinking of putting in the wiring and emmisions from a 93-95 Cherokee. Do the wiring harnesses differ between the manuals, automatics and 2WD, 4WD.