There is no bolt holding the balancer on. The balancer is a press fit and all you need is your puller. I would suggest that you drill and tap the end of the crank so you can use a SBC balancer bolt to secure your balancer and a stud with washers and a dab of grease to draw your replacement balancer onto the crank snout. Having the SBC balancer bolt in the end of the crank will allow you to use a socket and breaker bar to turn over your engine.
I drilled my crank about 5/8" deep with a battery powered drill...it's tapered inside so the drill centers itself in the snout. I'd use a new drill bit/tap and the crank was very easy to drill.
Dave
