It's a straight 6 not sure what size. 3/4 ton it duz run just not very well needs a cab and exhaust gasket it duz drive all gears work she just don't stop. Has new master cylinder just won't bleed probly needs wheel cylinders. Cab is it very good condition and that's what most guys r looking 4... I do have a title 4 it but it's not registered 2 anyone so I'm told u need 2 file 4 an abandoned title.... Asking $1500