[Bob Bidonde]

Thanks Ken Parker. This is exactly what I asked for:
I have s set of counterweights from Berts. Bolt on then weld the ends. Set of 4. Each one weighs 3.1 lbs total weight of 12.4 lbs. They are the samee thickness as the counters on the crankshft - 5/8" thick.

Also crankshft turned 10/10 under weighs in at 24.8 with no counterweights. Second crankshaft also turned 10/10 under with the above weights added weighs in at 37 lbs.