Why Won't My 454 Harmonic Balancer Fit?

[savatreatabvr]

I started putting the harmonic balancer back on my 454 after replacing the old timing chain and it doesn't seem to want to fit! I know it's supposed to be tight but come on! I already stripped the original HB bolt for some reason, (it was not cross threaded) and had to buy a new one, I've got about an inch left to go for the HB to be where it was, I'm contemplating hammering it on the rest of the way! I know that's not right but what else do I do?