Re: big block valve covers
Most reproduction chrome valve covers (that were used only on the 375 horse motor) do not have the oil drippers under the cover. You need those drippers if you are using the factory stamped rocker arm and ball. They not only supply oil but cool the springs and valve train parts. It would be better to find a painted set of stock valve covers off of a 454 truck and have them polished up and then hard chromed. (the 350 horse may have had chromed covers also, I just can't remember anymore).