I am in the process of putting a 700R4 into my 70 chevelle with a 454. I originally had it in my 69 chevelle with a 396. It worked great in my 69, that is why I want to put the same thing into my 70. During the installation I noticed, I have a larger gap between the flex plate and the torque converter. I called TCI ( the trans and torque converter manufacture) and they suggested that I use washers to take up the additional room, ok no problem. The problem I am having, is with the torque converter bolts are not long enough now. I went to the parts houses in my area and none of them have long enough metic size hardened bolts (9.8 on bolt head). I went to a hardware parts store and the hardest metic bolts they have are 8.8, I want to stick with the harder 9.8 bolts that I have, I just need to find longer ones. Anyone have any ideas how I can cure my problem? Do you know of a car, that I can go to the dealer and get the right size metic bolts that I need? Any ideas would be greatly appreciated.