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Old 01-14-2008, 08:08 PM
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Mr70 Mr70 is offline
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Default Re: Smog Pump Identification

It's probably a 3927116 AU pulley.
That was used on nearly every Low horse small block & 4cyl.including Corvette from 1968-77..No BB useage at all.
Based on your pumps date,I would imagine it came on a 1972 model originaly.
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