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What engine is that?

Because I started this thread I will chime in - Back in 2017 I had planned on purchasing one of Bostic Motors "remanufactured" 6.5 long blocks for my M1028 build, however by the time Jeff got through adding all the extra stuff he said I just had to have, the cost was going to be more than I...

Flu, I may indeed be interested. I will PM you with my contact info.

Just had another phone conversation with Jeff at Bostic. He said to use NA injectors on an NA engine and Turbo injectors on a turbo engine, because the injectors are calibrated to the fuel requirements of each version of engine. Makes sense I guess.

If that is indeed the case, it looks like I will need new 6.5 injectors. Only question now is, injectors for NA or turbo (see my revised Post 18 above).

I just spoke via phone with Bosch Technical Service and was informed that the part number for the injectors to fit the 6.2 is 0432217104, and the part number for the 6.5 NA engine is 0432217275, and the part number for the 6.5 turbo is 0432217276. So there is indeed some differences. Do you...

My injectors are brand new Bosch, and my glow plugs are new as well. Before I spend any cash for new ones, I will see if mine will fit and work in the 6.5. Hopefully somebody else with experience in this issue will chime in. Bostic claims their engines are hot-run on a dyno for 45 minutes to...

Thanks Marcus, you hit the nail on the head. I am preparing to spend several thousand dollars of my daughter's inheritence to purchase, quite possibly, the last engine I will ever buy. I have been a faithful and paying member of SS for many years and cherish the wealth of information on this...

After researching the many builders/rebuilders of 6.5 engines, I now believe the best units are assembled by GEP (General Engine Products) at their 92,000 square-foot facility in Franklin, Ohio. GEP is a wholly-owned subsidiary of AM General which produces the Optimizer 6500 for the military...

Well now you've done it. I'z got to know, bro. Please elaborate, either here or in a PM. Thanks in advance.

Anyone have any experience with Bostic Motors in Bostic, North Carolina? I am considering purchasing one of their drop-in GEP Optimizer 6.5 long blocks to install into my M1028. Just wondering if any fellow SS members have used their services before, and if so, opinions please. Thanks.