try my oilpan gasket and water cut plate. gasket thicker and denser than best. the plate puts tension to the raised ridges on the oil pane also comes with flat washers as well as at bolt locations.special washers,5/16 not metric

have 2 left 100 us including frt to most states. the other leak I have on my 292  is the greater oil pump is alum, and it warped from over tithing. I have a new gear pump will be installing as cast iron not going to warp. or just tell your pals' ys leave ther mark  like a older Harleys