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Old 12-11-2012, 08:52 PM   #64
DeadheadNM
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Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,288
Re: Factory Correct Restoration Details

Quote:
Originally Posted by MusicMan70 View Post
I had strange markings on the side of my block before I cleaned and repainted it. Looked like something spilled or smeared (UFO crop circles) on the side of the block, then I turned it upside down; TAX.
Guess this mark was added during the engine building process?
Here's my block (Thanks Paul and Jason!) that shows similar factory markings. In this case, TDR is the correct code for a K20 4wd application in 1972 - this motor was pulled from a K20 Suburban and will have a new home in my 72 K20 Super
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547
1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308

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