ive been looking at a set of big end bolts on the net and its says that they r grp a.....c rated.....what does it mean "C rated"???? as i heard that arp bolts r "v rated"

any idea's......i was told that it either means competion or the grade of the steel?

?????????

cheers

 

C rated could relate to the style of the head bolt indicating which tool you will need to fit them