VRSenator065

Hi there, I am changing over the harmonic balancer (damper) on my LSx454 from the stock OE type to a Power Bond.

The OE balancer does not have a key, but the power bond does. The crankshaft end does have a keyway. I bought what I thought was the key I needed but it is way too big.

Is there a specific key I have to ask for, and is it a genuine GM part? Here are some pictures

Thanks in advance.

LS1MCSS

iTrader: (18)

You can just leave it out unless you're going to run a blower pulley. The balancer is tight enough that it can't move and you won't need timing marks, if the pulley even has them.

sandragnx

iTrader: (82)

You can run it without but if the balancer has a keyway and crank is cut for one,I would find one that fits and use it.Measure it and go a hardware store and look threw there woodruff keyway assortment or machine shop.

sandragnx

iTrader: (82)

Oh,the keyway you bought is for the the crank timing gear/oilpump drive.

VRSenator065

Thanks all, your help is very much appreciated. Looks to me like this is the one I need, but as mentioned I don't strictly have to run it. But since its off and apart I may as well fir it.

Gray86hatch

iTrader: (83)

I would also look at a ATI balancer. With that big stroke you are going to need a good one. Also you don't want a underdrive it takes away the ability to dampen with the smaller dia.

Tim