Anyone use a Rollmaster timing chain?

I sold one of those a while ago. The tightness of the bottom cog would explain the hammer marks on the face. Someone probably trying to tap it on on its prior motor. Figure out your cam timing prior to putting it on if possible and heat it up with a torch. I did this with a alternator pulley that was a biotch to pull off (even with a dedicated alternator/PS pulley remover) and to get on would be near impossible as the shaft was not threaded. I heated it up under a propane torch for about a minute, grabbed it with a pair of channel locks and it slid on like a boss, all the way down in one smooth push. 3 seconds later that thing was locked on again. You got one chance, make it happen.