CRG Discussion Forum

Camaro Research Group Discussion => Originality => Topic started by: 68Zproject on June 21, 2014, 10:54:35 PM

Title: Balancer bolt
Post by: 68Zproject on June 21, 2014, 10:54:35 PM

I've been going through all the threads without much luck.  What is the usual headmark on the balancer bolt?  And did it have a lock washer or a star washer?  In the AIM it looks to be a star washer.

Title: Re: Balancer bolt
Post by: rszmjt on June 22, 2014, 12:21:50 AM

My 69 Z28 has "TR" headmark with a star washer, it is also drilled as though safety wire could be used. Owned the car since 74.

FWIW.  I have seen this drilled balancer bolt before on lots of high HP Corvette and Z28 engines. Also seen "WB" head marking.

Hope this Helps.

Title: Re: Balancer bolt
Post by: 68Zproject on June 22, 2014, 02:34:22 AM

Well, I have one that says TR and one that says Rockford.  I know I got a repro one once and it stripped out so I wanted to make sure I didn't use that one again.