09/15/2026
18 Sierra DOD/AFM removal. Upgraded to a truck Norris camshaft by BTR. Supporting hardware installed- springs pushrods cam oil pump timing chain 4* lockout on this setup. Pan gaskets, front seal head gaskets etc. And a tune. Strong mid gains. Notice the premature wear on the oil pump was running 0 weight switched to 5w30 mobile one full synthetic.