360 hydraulic lifter valve lash

moper said
Your techs should stick to things besides performance engines because they are far from correct.

First - most 360s (not all...but most) had a special spring retainer used on the exh valves that rotated the valve more during operation. They are heavy, and are not designed for performance use.
Second, there is no way factory springs will correctly control the valve Although you mention it ticked in factory form in teh 'Doba so you might just have a very worn lifter bore. In which case there's not much you can do unless you want to get into buying pushrods and rockers and even then it may not go away totally.

i agree that "phone techs" and those that dont have exclusive mopar small block experience can give bad info.

if a valve is fully closed, and the rockers and shafts are new, the lifters are pumped up , and the push rods are the correct length, what is creating a lash? i find it hard to believe that a 33,000 mile engine could have that much lifter bore wear. but i could be wrong.

its almost as though the base circle of the cam is too small, but this would be an issue with everyone running this cam, and i would think it would have been addressed by summit