Cleveland's didn't oil the crank first. Windsor's did. They were cheap (400M's were everywhere with the same heads) when I as growing up and I had 2, never had an oil issue. Did crack 2 heads due to adding water to a hot motor...DOH! Heads were $30 at Pick-a-part back then and it took about an hour to replace them. Boss 351 was the highest HP rated small block per Holdners shoot out.