jeepsr4ever wroteIt is really undecided at this point and its only speculation but when you are dealing with a solid material and mild steel you have tiny arear of stress in the material and warpage over thermal changes...really basic stuff whether or not it applies totally here is unknown :-|
I wouldnt worry about it that much, the rollmaster gears are actually a "balanced" matched set according to them, they seem to be lighter than the TRW set that was in my 343, wich was a non-roller stock replacement chain. That chain was stretched pretty good, it was so loose that it was contacting the oil slinger "lip" machined into the timing cover above the crank seal hole and gouged it, I heard it everynow and then too when the 343 was idleing in the garage. :!: I did drive that 343 hard too, so it took a beating but that chain was in there since at LEAST 1985, I bought the car in 1987!
I think the rollmaster will be able to take a lOT more abuse. The way the teeth are machined is supposed to free up some revs, also don't forget there is a torrington bearing on these bad boys, that should also help the chain life quite a bit over a stock chain. I still say it's one of the best timing sets available for AMC given the features it has, and the price compared to others.
