440 six pack damper ?

[Riceman65]

Aloha all
got a question before i put this motor together. i have a 74 440 block with the six pack rods / forged crank / KB hyper pistons and had the rotating assy neutral balanced (torque converter is also neutral balanced)  question is about the damper, do i need an ext balanced six pack damper or internal balanced damper being that my rotating assy has been balanced? i was under the impression that six pack motors had ext balanced damper due to heavy rods and rotating mass but since i added lighter pistons im at a loss as what to do. the damper that was on the motor is 2658457 and seems to be about an inch wide
any help appreciated thanks Steve

[Chryco Psycho]

As you had the engine internally balanced ,,which is the smart way to handle this,, all you need a standard or SFI neutral balanced damper 

[Riceman65]

WOW that was fast thanks CP, glad this board is here. CP did i tell you im switching from the four barrel to the six pack? its the jegs kit.
again thanks

[Chryco Psycho]

Cool 
Nothing beats the look of the 6 pack system 

[ksierens]

  Nothing like the kick in your pants you get the first time you dump the clutch after upgrading to a 6 Pack!