Paul, I would advise to get all new bolts from a reputable dealer. I have never had problems with Chevy's of the 40's but sometimes they and the rest of our suppliers can be snookered by the middle man. Jim Carter is a wealth of knowledge. To be on the safe side I would get one extra and put a sleeve around it and tighten to 90 lbs. or take it to a machine shop and let them test it. Then toss it away after it checks out. doc
