What side is the oil dipstick?

[old Chevy guy]

IM not sure what year it is that changes either but I just finished a moter swap on a 84 K20 and the old moter was on the passengers side but the doner moter was on the drivers side and it was a hassle,I had to get diffrent exhaust manifolds because the ones on the 84 dumped right where the dipstick goes on the drivers side. I had to buy a oil pan gasket for a 78 to get one that had drivers side stick,79 did not.What color is the moter in your truck, that is a quick indicater of year.67-72 should be chevy orange.