arthropraxis

Thanks, for the update. I sent my flywheel/PP back to the manufacturer to be check for balance early on and it was balanced. I have this nagging feeling I didn't line up the spare hole in the flywheel with the partially filled hole on the crank. Would that be enough to create this vibration?

I plan on getting it tuned in a month or two. Fixing all of the vacuum leaks and tightening the header bolts decreased the intensity of the vibration so it may be a lean spot/timing issue in the mail order tune on the PCM that doesn't work with my motor.

pkozera

iTrader: (29)

The original post said wrecked gto where was it hit? If in front and did the balancer whop very possible it could of bent the crank snout just a thought.

arthropraxis

It was T-boned. The vibration damper was fine and I replaced it with a new unit. Thanks, for the suggestion.

I did read on the corvette forum that some LS flywheels have weights added to them and some don't. If yours does not then it is 0 balanced and can be replaced with any 0 balanced flywheel. If the original flywheel has weights on it then you will need to transfer the weights to the new flywheel or have a machinist match balance the new flywheel to the old one.

I hope tuning fixes my issue. Taking the flywheel off is not high on my list of things to do, again.

arthropraxis

Swapped the clutch for a LS7 and all of my issues are gone.

cool breeze

iTrader: (1)

what type of clutch were you using?

Im having the same damn issue with my ls1/m3 swap