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Old 07-30-2003, 09:06 AM
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Biggarmike Biggarmike is offline
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I had a similar occurence a few years ago, I bought a 350 11" flywheel from a buddy, a GM guru, hung it onto my 327, and had tons of vibration, since I had built the motor from the bottom up with scrounged parts to get a numbers match, everything was suspect. I finally found the problem to be the flywheel. It was a 350 flywheel allright, (internally balanced) but someone had balanced it to a 400 by drilling it to work as an externally balanced one, then hid the handywork with black RTV. TALK ABOUT BENT OUT OF SHAPE! Anyway, I'll never neglect to balance the rotating assembly again, for any reason!
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