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Old 09-02-2014, 09:41 AM   #3
LTb1ow
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From my quick searchs, GM has used three different shaft diameters...

Small HEI is .428
Full size HEI is .490
BBC HEI is .500

I think?

Edit: Goal is to stick something like this http://www.summitracing.com/parts/ms...4550/overview/ in a vortec housing.

Edit #2: Measure vortec shaft, .428 it is.
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Last edited by LTb1ow; 09-02-2014 at 08:22 PM.
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