"m getting ready to install a harmonic balancer on my 57 235 engiine. I don't want to pound it on so I guess I'll need to drill and tap the crank shaft to use an installation tool to install the balancer. Does anyone have any other solution to install the balancer? I just recently drilled two 5/16 holes in the block to install the water pump relocation kit (I installed my 46 water pump on the 235) Drilling the two holes was pretty intense. I didn't realize the metal was so hard. I'm thinking drilling the crank shaft is going to be more difficult than drilling the block. Any thoughts would be appreciated.
