The Alloytec V6 motor found in VZ, VE, VF Commodores, Captivas, and Isuzu Rodeos has proven to be a reliable engine — but one recurring issue stands out: the dreaded timing chain rattle . Whether you’re a trade professional or an enthusiast looking to upgrade your own vehicle, there are many timing chain kits available. But after working on these motors since 2012 , testing numerous kits and revisions, we’ve developed a bulletproof REVHIGH Genuine Holden V6 Alloytec Timing