Boy that is a mess. Shame on whomever did that carnage, certainly not to be proud of. The balancer needs to be thrown in the garbage, since you are going with a relocation bracket and stock 216 pump try and find another 216 balancer so it will spin the water pump at the correct speed. I have installed three relocation brackets from pre68 Dave and they have all worked out well. I would remove the radiator and core support and that will give you the room to drill and tap the block for the relocation bracket. I have also had good luck buying parts from the filling station, their orders go out usually the same day. check them out they are a dedicated bunch there to our cause.
1953 Chevrolet 3100 261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done In the DITY Gallery Video of the 261 running
1964 GMC 1000 305 Big Block V6, sm420, the next cab off restoration
