New stall or balanced flywheel?

Excellent point. It has a Scat crankshaft and the build sheet states "balance rotating assembly, V style". I assume I will be okay after all?

Never heard the term "V style" so don't assume anything even though a lot of stroker cranks balance out internally just fine. I'd call the machine shop and ask them to make sure. Would be a bummer to install the wrong one and have it vibrate.