I have a 1992 Jeep Cherokee. But I can’t find a good engine that has the distributor. Could I change a coil on plug engine over to a distributor so that way it would work in my jeep

 

yup

 

The coil rail motors have a crappy head and exhaust that are matched. If you use that head you will not be able to use any of your exhaust manifold. If your going to reuse your head then no issues mostly. Your current power steering bracket may not bolt up to a post 96 block, so you might have to get a post 96 bracket

 

XJ Cherokee and ZJ Grand Cherokee 4.0L engine blocks interchange.

2000+ TJ Wrangler and WJ Grand Cherokee 4.0L engine blocks interchange.

XJ/ZJ blocks, and the 2000+ TJ/WJ blocks DO NOT interchange without significant modifications. (1991 to 1995 YJ and 1997-1999 4.0L TJ Wrangler blocks will interchange in XJ/ZJ and visa-versa).

TJ/WJ 4.0L Engine blocks underwent clean sheet design changes effective in the 1999 WJ Grand and 2000 TJ Wrangler. These blocks are not interchangeable with XJ/ZJ engine blocks. The reason is motor mount bolt holes and belt driven accessory mounting bolt holes are in different locations, or not present at all, TJ/WJ vs. XJ/ZJ.


XJ: "Regular" (not Grand) Cherokees 84-01
ZJ: Grand Cherokee 93-98 (Gen1)
WJ: Grand Cherokee 99-04 (Gen2)
YJ: Wrangler 87-95 (Gen1)
TJ: Wrangler 97-06 (Gen2)

 

91 to 99 is your best bet. You can even use 87 to 90 quite easily.
Stay away from the coil pack motors.