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Old 10-07-2021, 07:07 AM   #1
Weekend Racer
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Default coolant passage

On sbc chevy heads casting 441 ,Before angle milling heads ,do the spark plug coolant passage be plugged with epoxy .What your thoughts?
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Old 10-07-2021, 08:53 PM   #2
Mike Taylor 3601
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Default Re: coolant passage

If plugging those holes thread them and plug with bolts and loc tite or taper plugs...
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Old 10-13-2021, 05:41 PM   #3
Tom Broome
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Default Re: coolant passage

Quote:
Originally Posted by Mike Taylor 3601 View Post
If plugging those holes thread them and plug with bolts and loc tite or taper plugs...
This is the right way to do the job.
If you're unsure where to get the plugs and corresponding taps, check Goodson: https://goodson.com/products/crack-repair-plugs
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