Originally Posted by ctorj
Yes it came stock in the Cj7 and CJ6 in 76 as a option. All you need is the Engine mounts/Radiator/ ans small parts from another CJ with the 304. Everything is a Bolt up.
When engine mounts are mentioned, whats meant are frame mounts, and, only the frame mount on the passenger side needs changed. Motor mounts (the ones that bolt to the block) will need to be for a AMC V8 .
The I6 radiator will work, but, it's probably just a 2 core, so a 3 core will likely be needed, to keep the V8 from overheating.
Depending on what ignition (distributor) and the ignition system, both engines have, a change may be necessary.