360 build questions.

Well, we are using 340 rods and KB hypereutectic pistons on a 273 cast crank in a 340 block; this rod/pin/piston and associated reciprocating weight should be almost identical to the 273/318 weights so the 273 crank should already be close to properly balanced with this rod/pin/piston combo, but we are still going through the balancing process. It is a good investment in smoother running and less internal engine stress for those few times we will be revving this engine, IMO.

What I am going through now is a 360 build plan, and looking at the lower reciprocating weight combo with hyper pistons, and wondering if the standard 360 crank throws will have enough weight on them to internally balance out the lighter hyper weights.

Soooooo......Does anyone here know what bobweight will internally balance on a standard 360 crank?