Harmonic Balancer for 340

Does anyone know if the harmonic balancer for a SBB 350 would work on a SBB 340?
Still working on building a 340 and trying to swap over parts from my tired 300 but unfortunately the balancer on the 300 is looking pretty tired.

 

You might have to get it re-balanced, there's a little difference in the weight of the rods. Actually I think the 350 is closer to the 340 than the 300 is in terms of the rotating assembly as the stroke is the same and the cranks are interchangeable.

Jim

 

Thanks @Jim Blackwood
I think I'm going to look at buying a new one but not having much luck. Any ideas?

 

Damper dudes can rebuild them .

 

Have a GM NOS 350 one, $200.00 plus shipping, if you are interested I can post pictures.

 

Awesome! Thanks @LARRY70GS

 

Thanks everyone, I've got one on order.