[mal68ibu]

The green engine is another guys build and that was his exhaust. Aparantly there are 3 slightly different blocks for the 6.5 (feel free to correct me if I am wrong). I have the early one that is a 599 casting (92-93) and its all mechanical injection and has a less desirable cooling set up. 94-96 or 97 is electronic injection and better cooling inlet, and 97 or 98 and later have oil squirters for the bottom of the pistons, and I don't know if there are any upgrades to the coolant intake. Also som 93's and 94 and later are EGR engines. I looked specifically for a 92, 93 engine so that it would have all the mechanical injection stuff on it and no EGR. I got a smoking deal on mine because the owner thought it had a rod knock. Just turned out to be a nailing injector. The truck recycling yards out here want $2500+ for 92 and 93 turbo engines. They are just not showing up in the self serve yards. They are easy to come by if you are willing to shell out the cash for one.