340 CRANK?

I have balanced a few 340 (possibly 318) cranks, with and without the 'drilled crank' throws.
Most don't have any numbers to check for application.

They all have balanced up fine with stock 340 rods and pistons?

I always like to polish the beams and lighten the rods as much as possible anyways...
Then the crankshafts will need the counterbalances drilled when either crank is used lol.