· if you swap over to a civilian nhc-250 alternator mount (cheap at truck salvage yard), which will likely be a j-180 short (4 between double ears), it should also give you a lot more options for lower cost and more reliable civilian stuff. · hey, what are the recommended parts / tips / tricks when removing, cleaning, and re-installing the clogged fuel injectors on an nhc-250? While i love the 6cta 8. 3 motor, i would suggest that anyone who is interested stick with the nhc-250-powered. · cons – parts availability, starts better than the nhc-250 in cold weather but still needs a sniff of ether ive had both nhc-250-powered trucks (m929a1, m928a1, m932) and 6cta 8. 3-powered trucks (m936a2, m932a2 and now two m925a2s). · nhc250 valve injector overhead adjusting many of my fellow haspin rally attendees know that my m818 was quite smokey and running a little rough. So, after killing lots of bugs and sending a few prius drivers in the other direction, i decided it was time to address the problem. I have the manuals on cd and all i can find is torque specs for the heads then the rocker arm towers. . · i have m816 with the trusty 250 cummins. I have a few bad injector o-rings since i am getting fuel into the oil. I got the new o-rings but i need to know the torque specs for the injectors. Any guidance/tips from those who have done it would be greatly appreciated!