Is 426ci 360 a small block?

So, balancing the cc's in the combustion chambers today and getting ready to assemble the engine and put it on the dyno. No pictures or technical data, as this is hopefully just a failure. I'd like to prevent dealing with the crap RAMM and others have to wade through presently.

It's spring and I have a whole yard of dog crap to wade through--It gets surprisingly easy after some practice. J.Rob