notatruews6

iTrader: (3)

I have a 6.0 lq4 in my 99 Trans am, I am geting a wierd vibration coming fromt the motor, i rembember my engine builder telling me that he used the stock ls1 balancer instead of the damaged 6.0 one? My question is are they different?

jay_lt4

iTrader: (4)

all the stock 4.8, 5.3, 5.7 ls1, 6.0;s are internally balanced, the crank pulley doesnt even have a keyway so it can go on in any position and you should be fine, it is a crank pulley/dampner and has nothing to do with engine balance

Grimes

iTrader: (3)

I think the offset for the belts are different depending on vehicle. For example, the vette balancer is different from fbod.

PREDATOR-Z

I do not want to raise bells but you mentionned "damaged" balancer and the " vibrations"
Was the crank checket for any damage, or bearing dammage before re-install?

It is possible those are crank vibrations, I would get the crank pullet stobe lit to read any wobbliness, to see if it is pulley or crank related.

black_z

iTrader: (4)

IF the pulley was damaged, there is a good chance the crank was also damaged.

Quik

iTrader: (7)

a truck accesory is different then a fbody one. you will need to use a car one on a 6.0

PREDATOR-Z

You use the peripherals from the car it is in.

notatruews6

iTrader: (3)

Update: the 6.0 balancer that was damaged was just the rubber peice, it was coming out. ive had the crankshaft checked when i had the motor out.

Grimes

iTrader: (3)

Good catch, hope things work out now!