Quote:
Originally Posted by Schurkey
Chevy engines of this general time frame used neutral-balanced dampers and flexplates/flywheels except for the 400 small-block, and the 454 big-block--which did use locating dowels between crank and flywheel/flexplate. The neutral-balanced flexplates/flywheels don't need an offset bolt pattern because it doesn't matter which of the six possible positions it can be installed in, they all balance-out and function the same. Once Chevy went away from neutral-balance on the parts, there were offset bolt patterns or locating dowels.
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I'm with you, but have never worked on a Chevrolet V-8 engine which had an offset bolt pattern. Just dowel pins.