GMC Truck Forum banner

build

  1. Engine & Performance
    So what first started as a potential cam/valve train upgrade on my basically stock 2004 L59 5.3 (BTR stage 4 V2 truck cam, summit LS7 lifters spec lifters, and summit push rods to match, BTR beehive .660 valve springs, btr ls hat valve seals, and other odds & ends needed for job) I originally...
Top