i don't know about the "easier" or cheap part -- you still have to fabricate engine mounts and do all the wiring/fuel delivery/exhaust. same type of deal with the 3.4, with the exception that you need to put in a V6 or turbo transmission.

also, most of these engines are in the $1500-up range in the yards. compare that to the 22R that you can get all day for $300 in running shape.

don't get me wrong, they seem like a good mill, but if i was to upgrade my '91 truck, i'd put in a 3.4. as for the '79, simplicity is important, and i don't need horsepower on the trail, so the 22R is perfect.