The bottom end will have close to the same architecture, it has 1 turbo, 1 cooling system, top end close to the same 6.7 CTD, but will have spark plugs and gas related equipment. Whats impressive, is that the engine was originally designed for HD Diesel high torque application, but converted to Gasoline keeping most of the same architecture giving you a high torque engine with gas benefits. The HP is low per the new standards of todays trucks, but its why I like an I6 as they were back in the day. Major negative is the weight, why it'll probably be offered in the 2500/3500, at @ 1000 lbs, thats way to heavy for a 1500