So I have a buddy that just acquired (10) Complete Military 6.5 engines. (5) Center mount Turbo and (5) Non Turbo. He told me that all are under 10k miles. Run time unknown. Asking $1k each but will package a better deal. I'm not sure if any are Optimizers or not. I'll need to read block codes.

He's asked me to invest and the plan would be for me to resell. He also lives 6 hours away from me. I am planning to visit him with my trailer, but only staying long enough to buy or not, lunch, then leave for home. He said these are 90's to a 2000 he thinks. That's all the info I have and can get until I arrive on site.

So here's my questions:
- Are the earlier military 6.5's the same as the non military?
-What should I look for?
-Are the heads, and pumps different on these engines?

I'm planning the trip to leave in about a week.

I wont have any time to post and respond as I believe I will only be on site for a few hours at most. I will need to make decisions quite quickly and load and go or not.

I need as much info as possible to hopefully make good decisions.

All thoughts and suggestions are greatly appreciated.

Thanks in advance