ok I just relized that I bought the u-cut headstud bolts and i was wondering if there is a difference between the u-cut and standard the arp # for the u-cut is 209-4701 and the standard is 209-4301 is this going to affect anything or not
the under cut are the only ones I recommend because they are stronger and offerer better clamping characteristics. because the "shank" section is thinner it doesn't touch the sides of the head to bind or anything like that.