Ok guys got my newest 409 fired up on the test stand and all was going good for about 25 minutes then oil pressure went to a big fat zero and at that time I realized it blew out one of the oil gallery plug on the drivers side by the motor mount right above the pan rail. Stock 400hp 65 block with 10 40 driven brand oil and it had 80 psi before it blew apart. Damm machine shop did not tap the hole so it was one of those pop in plugs so what's my best option to find another one of these and when install do I use red locktight? Is oil pressure too high? It also has the stock oil filter canister on it. I lost about 3 quarts so hoping no damage .