Well, what else would you call plugs that seal the ends of the oil galleries? Gallery Plugs, of course!
CONGRATULATIONS!!!!
Well, you've done it!!! You have won 1,000,000 imaginary dollars!!! Now come the calls from every salesman in the country wanting you to buy something. Relatives you haven't seen in 45 years will be dropping in and you'll make more friends in the next 2 days that you've made in the last century.