Thread: Chev blower drives

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Originally posted by southerner
Hmmm , yeah I have actually seen one of my crankshaft noses get bent .010" out of allignment after big backfire, and that was with a stock vibration damper on it, but it must of weakened it because the next backfire split the damper through the keyway hub and everything just basically fell off. That was with a 355 chevy, so now looking at the 383, would the trick be to go for the SFI internal balanced damper as it will keep the safety guys happy ?

when you buy a new blower kit you dont get a HB with it,you get a hub. the belts are suppose to do the job. i think if you hang 10 more pounds on the crank is just gonna make it worse. fix the backfire and you want have to worry about the HB. when it bacbfires the blower stop turning, so something has to give. fix the pop back.