Most will say that it is impossible to change the rod bolts and add Raceware or ARP rod bolts without splitting the case because these require a big stretch gauge - and they are right. However, if there is a will, there is a way. Made this gauge out of an old micrometer. Took it to a machine shop and tested it against a high dollar gauge - perfect reading on both. Fits right in the case and can measure the stretch of the ARP/Raceware bolt precisely. Problem solved.
