727 Small Block Torqueflite Convertor

My advice - buy yourself a B&M flexplate for a 360 - it is machined to make up the weight for an externally balanced 360, so you can run any non weighted converter behind it. I believe it also has two sets of mounting holes for the converter depending on which converter you run. Note that most aftermarket / rebuilt converters are balanced and will have some small weight(s) on them - do not confuse this with the large weights for an externally balanced engine. If you use this flexplate you want a zero balance converter.

http://www.jegs.com/i/B&M/130/10236/10002/-1

David