Detroit Diesel Silver 6V53TT military being fired up for the very first time ever. This unit was originally assembled in 1987 but was never used and until this past year it sat the crate it was shipped in. This 53 series is one of the rare Silver units with cross headpistons and a bypass blower. It was designed as a single turbo, but has been upgraded to a twin turbo setup. A little sluggish to come awake for the very first time, but now its a true screamin' demon!