Join Date: Mar 2005
p07r0457 is offline
Re: 1998 Vortec timing chain replacement
according to GM, the timing chain is designed to "last the service life of the engine". To me, that really doesn't say much... what is the service life of the engine? My thoughts are simple -- if you're not doing anything major to repair the engine, then don't worry about it. If you are rebuilding, or are otherwise doing something major, then replace it.