There is the bolt with the ford part # and a ruler. I am doing a ford 302 swap and was putting the flywheel on. We got the bolts for a M/T from the ford dealer and were proceeding to torque them down to 80 ft-lbs. Three of them stripped at around I would say 40. One of them could not even be removed, although it would rotate freely both directions, It simply wouldn't let go. We finally got it out by using the crowbar + the channel locks. Anyway, someone screwed up and speced us the wrong bolts. After looking at it the bolts would of had only 1/4" max of bite into the crank. Turns out they gave us the bolts for an Automatic (their flywheel/flexplates are MUCH thinner). So we used the tap and die to fix the threads and were thinking of replacing the bolts with grade 8's with more length and using all of the threads the crank has left (minus the first 1/4" which is thrashed) which is equal to what the correct bolts would have been able to hold onto. What bothers me though is that it is such a crucial part. I know that the thread amount will be the same, but it just doesn't seem like it is a good place to cut corners at all. Tommorow my brother is calling up ford to tell them whats up, because this is unacceptable. Any thoughts? I am going to go mope about my destroyed crank, might as well be the whole block b/c we don't have the means or skills to replace the crank.