http://gearsandrears.com/girdle.html

there's the web site for those girdles...I have one..it's going in a 499...the object of the stud girdle is to absorb and transmit the harmonics to the block...it should prevent cap walk...I E-mailed Chapman awhile ago about the pricing..I think it was 1500 or 1600 per head...I thought that was way high until I added up what was in mine....I could have had those and been miles ahead of what I'm doing.....lesson learned...