Quote Originally Posted by CobraV8
How much runout is acceptable for blower pulleys? I measured 0.012" max. runout with a dial indicator on the inside of the top pulley that drives the blower.

The blower is a 6-71, street use (max boost below 9psi), 1/2" pitch gilmer belt drive.


Thanks,

Simon

there is nothing wrong with that run-out. the gears up front and the belt will determine where it runs.