The engine in question came from the factory with hydraulic lifters, per the stamped serial number on the engine.

I will remove and measure the pushrods and make sure that they are all the same length. It appears that they should be 11 1/4" long from what I can find. (Confused a bit by what appear to be conflicting statements in the Master Parts Catalog.)

Jerry, I saw a post recently where you suggested pre-filling the lifters by spinning the oil pump while turning the crank a few revolutions. I will do that in case some of the differences apparent in the adjustment screws is due to the engine sitting for an extended period.

Nick
1940 KC Model 1/2 Ton Pickup Project
(with '37-'39 Bed and what we think is a '42-'46 Frame)
Taos, New Mexico