None of the ones you listed will work for your application. You'll need a complete set of pulleys and alternator brackets from a '70 and newer small block without A/C. If you use a crank pulley from a '72 and newer, you'll need to egg out one of the mounting holes if you're using the '70-1 only balancer. Easy to do....just use a rat tail file. The replacement ones from the dealer came with a slotted hole so you could use them with either balancer.
