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Old April 2nd, 2007, 04:25 AM   #7 (permalink)
Jim's rare 80
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Join Date: Feb 2007
Posts: 209
W31 heads

Hi. Check out the following link.

http://www.oldspower.com/vb/showthread.php?t=11921

According to it, your #5 heads are stock 68-69 heads. A w31 would have code 6. Hope this helps, Jim.
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