Thread: Low-NO oil pressure on SBC 350

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I'm having the same problem as stouttrout - Low oil pressure on a small block 350. The problem developed suddenly, so not (probably) loose bottom end tolerances, good press. at start up, so probably not the oil pump (repalced it anyway), new filter, I heard from a chevy mechanic friend that if a rocker arm swings off that the lifter will push up enough to bypass oil to the pan - still oiling the bottom end but not the pushrods! Checked that too. Still no oil at the pushrods/rockers. How can I tell if the bypass at the filter adapter is dumping? Any other suggestions?