[Dragncar]

Originally Posted by mgarblik

9-3112 Cloyes true roller set available at Jegs and Summit Racing among others. Approx. $125.00. High quality, rugged and reliable. We ran these sets on the Grocery Getter race car for for 16 years. Never a failure. Over 1000 lbs. open spring pressure, 8500 RPM's, just under one inch valve lift, Hundreds and hundreds of runs. We now use the billet sprocket set with the 9 keyways for more adjustment. Even more spring load, higher RPM's, 44 amp magneto, belt driven 43 GPM oil pump, nitro fuel pump and a 14-71 roots blower all pulling on that timing chain. Never a failure. Even when we had a blower explosion, that bent the crankshaft .030", left the blower case in 3 pieces. Even sheared the camshaft key off. Timing set and chain were fine and tight. I just don't know what else you can do to destroy one. I don't think a Chinese set would have fared as well.

So what you are saying is that chain is good enough for anything short of a nuclear explosion. Good enough for me.