Review on Cloyes 9 3673TX3 Roller Billet Timing by Guillo Tilden

This headset is of high quality. Ideal for replacing the timing kit on the Yukon 07 5.3. The inner chain links are slightly thinner than the original. This is because it is stiffer than the stock chain and at high RPM does not make contact with the cam side as the cam flexes. The cool thing is that it fits as an OEM timing kit with the benefits of high quality. The fit and finish couldn't have been better. 29 years. Mechanic. I also use them for my racing engines. Never had a single failure.