use 318 hyd lifters but pushrods would be different for adjustable rockers
BVVC there are early and late lifters and pushrods with different diam lifter cups and tips (at least for BBM)
also the later AMC/Magnum lifters have a different height- they are widely sold for most everything MOPAR now
if your heads have been milled, or block decked, the aftermarket gasket may even things out
since you have adj rockers make sure the lifter ball is not way out from the rocker when adjusted
there are early adjusters which we adjusted with three threads showing but these had a short neck between ball and threads
later adjusters have a long neck
bottom line is tha you may need custom pushrods anyway unless you can find some in a length chart
