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Old 12-15-2022, 11:14 PM   #33
Oregon 1967 GMC
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Join Date: Jan 2014
Location: Portland, Oregon
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Re: Another Overheating Mystery

Quote:
Originally Posted by geezer#99 View Post
Some new rads come with a plug in the inlet/outlet to keep varmints and crap outta the insides.
Maybe that’s what it is!
I think you're right
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67 GMC Short Stepside 400 small block, turbo 350. Build thread:http://67-72chevytrucks.com/vboard/s...d.php?t=650603
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