* Buick 231 CID V6: This was a popular choice.
* AMC 258 CID inline-6: This was also a very common engine for the CJ-5. It's often considered the most desirable engine for its reliability and parts availability.
* AMC 304 CID V8: This was a less common but available option, offering more power.
To know for certain which engine is in *a specific* 1974 CJ-5, you'd need to check the vehicle's documentation (if available) or look at the engine itself for identification markings.
