83 b2000 lifters?

anyone know if they are hydraulic or manual? i think they are manual, and i think that i need to adjust them. there is a lot of ticking going on up there. i don't want to pull the valve cover until i really need to and i know what i am planning on doing.

I THINK A FEW OF THE VERY LATE MODEL 2000'S may have had hydraulic lifters but if ur's is an 83 it has solid lifters that are adjustable.BJ