hey i need to know what size bold i have on my crank pulley. all my tools got stolen and i trying to rebuild this 82 LG4 camaro motor i found. can someone help.

 

It's 5/8" hex head; 7/16"-20 thread.

 

You asking for the crank pulley bolts or the harmonic balancer bolt?

 

im talking about the rather large bold in the middel of the crank pully

 

Then yeah, sofakingdom nailed it right on the head then... 7/16" 20 thread 5/8" hex head. Can be found brandnew in a kit with washer and spacer also grade 8 for $7 at autozone.

 

As a little precaution, buy a bolt that will bottom out or nearly bottom out in the crankshaft. The bolts that you buy usually barely start to grab when you are tightening them. Trust me, I have stripped out a crank bolt before.

 

You don't use the damper bolt to install the damper. You use a damper installation tool to install the damper. Then you remove the tool and install the retaining bolt.

 

Ditto, Spend the money on a nice ARP unit with a ton of thread which will thread into the snout a good distance.

 

It's funny we are going off on a tangent about installing a harmonic balancer bolt but he only wanted to know the size.... micro management at it's best