Or, you can do what I am doing: I purchased a dual 3/8" grove harmonic balancer from Buffalo Enterprises (A nice piece that took over two months to receive). I used a '53 water pump for my '52 216 (has the 3/8" grove pulley). Now I am setup for modern 3/8" belt size and have an extra grove on the balancer for future needs. And, I can use a standard alternator.
