Pin hole in cast iron head

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I have some radically modded 318 heads with 2.02's which developed a pin hole in the bowls I should look at fixing.
 
Hysteric said:


I have some radically modded 318 heads with 2.02's which developed a pin hole in the bowls I should look at fixing.
Click to expand...

If it truly is a pin hole the Belzona on the surface might work fine. As PRH mentioned, others have had success with it.
 
20220724_202237.jpg
 
Earlie A said:
Help me out here. Big block iron head. Is there a hole somewhere?
Click to expand...
That's nickel powder spray welded, to allow a bit less pushrod pinch, 452's have an odd thinner/narrow port top section casting.
That's taken right after the cool-down was done...
 
I would have went with getting Billy Mays to come over and put some Flex Seal on it...
 
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