Recently installed an aftermarket balancer on a 350. It was the hardest to go on that I have ever run across. Finally got it on with an installer. This is the first time, I'm not sure if it is on all the way or not. Is there any measurements that you can go by to tell if it is fully seated? I don't want to install the engine in the car only to find the pulleys don't line up properly. If you measure from the tip of the crankshaft snout to the outer edge of the balancer, would this measurement be common for all small blocks? Someone told me this measurement is 1 inch. Does that sound right? Any thoughts on the matter is appreciated.