340 to 360 Harmonic Balancer Swap?

i am swapping parts off a 340 to a 360 long block

1) I have a 340 harmonic balancer with the "use for 340 cast crank only"
stamped on it. will this particular balancer work on the 360?

2) will the 340 flex plate work on the 360?

3) will the torque coverter need to change as well?

thanks so much. Godspeed

keni
I have a 360 oem balancer and a 360 oem torque convertor if your interested. they came off of a 74 charger 360. my engine is now internally balanced so I do not need these.