HINSON C7R LSx Timing Chain LS1 LS2 LS3 LS6 LS7 LS9 LSA The STRONGEST single roller chain available. - Purchase from Hinson Motorsports with peace of mind and security. Buy with confidence because Hinson Motorsports backs its products 100 percent. HINSON C7-R Timing Chain has been tested by an independent lab to failure. This new release offers a seamless roller design that offers an improved contact surface on the cam and crankshaft timing gears. GM Gen 3, Gen 4, and Gen 5 GM V8 engines. 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L Stronger than then C5-R seamed roller version that has been popular for so many years.