Edelbrock RPM head casting flaw

Mrpatel said

I spoke with Edelbrock, they said they would review my case and went on to say that they have never had a casting void in these heads since relase in early 2000’s. They did mention that they could possibly give me a discount on a replacement blank. They recommended using a 5356 filler rod. I will post any updates.

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Just weld it and forget it. I wouldn't worry about blocking the coolant off. Just weld it and forget it happened.


This is why some guys can never port heads for a living. If that little hole wrecks your day you'll hate trying to make money porting. If you are going to grind on heads and intakes you had better either know how to weld or make a welder your buddy. Or live with your port work running slow.