so one thing about Magnum engines is...it's almost impossible to get the lifters out unless you pull the heads (more specifically the head gaskets). There's a section of the head gasket that has the holes in it for the pushrod, which makes it nearly impossible to get the lifters out - the lifters need about 1/8-1/4" more distance before they'll come out, and forcing them past the gasket would probably scratch the lifters - for sure would scratch the spendy brand-new ones trying to cram them in the bores....but I employed a very simple solution - grab a fresh set of tin snips, cut away the head gasket material, and they pop right out! My new V10 lifters arrive today so I should be able to drop 'em right in :thumbsup:

This is the area of interference -




Cut this section of the head gasket out - problem solved, and no need to pull the heads 👍 . Yah you lose the alignment holes, but who really needs those anyway...