oil gallery plugs c&c RD 429-460 aluminum block

if this was the cast iron block I would not have a question.the c&c RD block is a little different im not sure if I need to drill a hole in the 1/4 plug or leve it out?i am at a stand still until I get this figured out.

DO NOT leave the plug out!!! That would be like cutting an artery in your body. "I" haven't had to drill any of the plugs on an aluminum block. Others may have a different opinion.

gt350hr wrote:   DO NOT leave the plug out!!! That would be like cutting an artery in your body.  "I" haven't had to drill any of the plugs on an aluminum block. Others may have a different opinion.

tell me what I need to do so that this thing has a happy life....

ok the answer is plug the passenger front with the 1/4in plug.in the rear put the other 2 1/4in plugs in with a .060 hole in each.