How to Diagnose & Replace Any Chevy 350 Timing Chain Pt3 Double Roller Timing Chain Install

We will continue the timing chain service on a GM 350 by upgrading to a double roller timing chain. After the double roller timing chain installation we will bar the engine over twice so you can hear the compression difference in this hi-performance 350. Every engine we have done a chain too you can hear the compression difference. If the engine has over 200,000 miles doing a timing chain service may make other parts of the engine weak (Head Gaskets, Seals, Gaskets)