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Old 10-17-2012, 08:44 PM   #17
Graham57a
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Join Date: Aug 2010
Location: Asheville, North Carolina
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Re: Factory Correct Restoration Details

Quote:
Originally Posted by davepl View Post
Almost certainly just cast iron, but of course they rust in the first weeks. I used an Eastwood product, and POR-15 and others make similar. Haven't fired it yet, but from those I spoke to it'll stay looking like that for quite a while, and you can touch it up as needed.

I glass-beaded the heck out of them first to remove whatever rust I could, though a chemical dip in rust converter might have worked better. I also blasted a ton of carbon out of the insides, which surprised me. Not that manifolds flow great even when new, but these were really loaded up!
Great pointer, thanks. Anyone else have pointers, tips, or really cherry original trucks that we can refer to??
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1972 Chevy SWB Cheyenne Super JANE http://67-72chevytrucks.com/vboard/s...d.php?t=462072
1972 GMC Jimmy PENNY http://67-72chevytrucks.com/vboard/s...d.php?t=735827
1968 GMC patina swb PEARL http://67-72chevytrucks.com/vboard/s...d.php?t=731315
1972 Chevy K20 BRUCE http://67-72chevytrucks.com/vboard/s...d.php?t=805788
1972 Chevy SWB Highlander OLIVE Build thread coming
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