[wkooiman]

Hi Blaine,

That doesn't mean it is internally balanced. It means it isn't a 428 SCJ, so you don't need to run the hatchet spacer behind the balancer.

You still need to run the 28oz inbalance flywheel, and to be safe, you should contact the engine builder.

BTW, I'm running an aluminum flywheel, and I like it.