1994 dodge pickup oiling issues

Ok guys I've got a1994 dodge ram 1500 with a 318 cam bearings are good new oil pump new oil pump drive pin getting oil to the filter and that's as far as it gets no oil pressure and no oil to the top end any ideas? Me and a couple engine builders are stumped!

There may be a clog I an oil passage leading from The filter back through the block to the top end. There are oil additives that could he'll sort this mess out, just go to your local auto parts store and ask about additives that help dissolve built up gunk. If that does't work, you may just have to tear the whole engine apart and clean every oil passage out, check for deformed gaskets and seals and all kinds of sh¡t. Kind of surprising I've always thought the 318 was a a strong reliable engine.