External Balanced 360 With new parts still Balanced??

@Marcohotrod you are right. I'm sorry I was thinking big block there for a second.

@nm9stheham Doing more research and referencing the build in hotrod magazine done by IMM. They used the following icon piston and had no issues and no rebalance but it is much heavier then stock. with external balance how much difference compared to stock bob weight can you get away with?? Looks like the icon piston they used was 38 gram heavier than stock. That seems like a drastic difference to me!

Stock: 474 +136 =610 grams Piston/pin actual weight.
ICON IC741: 530 + 118 = 648 grams from Icon website.
KB107: 524 + 132 = 656 grams From KB website.

https://www.hotrod.com/articles/build-500hp-capable-360-magnum-short-block-cheap/