My E86 Challenger is an automatic. It came with a blue 383 under the hood and the original 440 long gone. I found the right date 440 HP Block, bought reconditioned six pack rods and the correct weighted torque converter (rebuilt). I am going to go with SRP 30 over pistons.

I figured it would be easier to balance this non matching assembly with a virgin crank rather than than one that has already been cut or filled so I bought a new Eagle forged crank. I am thinking to balance the collection of new parts and be able to run it on an engine dyno I need to use a six pack flywheel (can't spin the torque converter without the trans) to maintain the correct weight offset from the torque converter. Does this sound reasonable?