Engine outa balance
 

A friend of mine just bought a 1968 camaro with a big block 1990 454 ,4sp.The problem is is has a vibration in the engine ,Im wondering if it has the incorrect flywheel,I got the casting off the flywheel they are # 14096805 thanks for the help...

Re: Engine outa balance
 

Kris;

The 6805 flywheel is listed for 1991 and newer 454 and 502 applications. I don't know if there's a balance difference between the earlier engines and the 1991 on up engines or not. Did you check to make sure the engine has a counterweighted balancer?

Eric

Re: Engine outa balance
 

Not yet, il go look,what do i look for on the ballencer.thanks for the help

Re: Engine outa balance
 

It might be the pilot bearing where the tranny fits into the motor. I think its called the pilot bearing. Also check to see if the driveshaft is balanced. Sorry for being a little vague, but I'm recalling a conversation I had with my engine builder.

Good luck.
-Dan

Re: Engine outa balance
 

Kris;

Look on the back side of the balancer in the recess by the timing cover--you should see a fairly noticeable counterweight cast into the hub of the balancer.

Look at this eBay auction at the top of the picture and you'll see the counterweight.

Eric