Any spare 327 cyliner heads out there? So, I was a numbskull . I was drilling the head to helicoil the valve cover, and drilled into the water jacket. It may be repairable, but I haven't found anyone who is willing to try it. If I can find a head, I will just replace it, I have tried Ecklers and they only have hi performance. I want to stick to stock. Rock auto has nothing.

 

Why not thread the hole and install a stud sealed with Permatex #1 or JB Weld?

 

I hadn't thought of that. The only fix I could think of was welding the hole. I might try this, thanks.

 

I have a 66 truck engine in the shed, not completely sure what it is, 283 or 327, just had the heads done before the truck went to crap so stripped the engine and trans and they just been setting for about 20 years. I think they are single hump heads. what numbers are on the heads you have.

 

The casting number is 3917293

 

these are 3884520

 

valves are same ill have to go back and get a pic of front for you to check to see if bolt holes are same as yours. back has no holes