Re: Block Coolant Leak Repair???
The best answer would be to pull the head, IMO. If this isn't an option then I too would use the GM tablets. Also have heard that Irontite works very well, but have no personal experience with it.
Good luck with whatever method you choose.
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Remember the days of carburetors,chrome,and leaded gasoline?
1969 Nova SS L78 4-speed
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