GM 6.0 Liter V8 Vortec L96 Engine Info, Power, Specs, Wiki GM 6.0 Liter V8 Vortec L96 Engine. The 6 V8 Vortec L96 is an engine produced by General Motors for use in its full-size heavy duty (HD) pickup trucks, vans, and SUVs. chevy gmc lifter noise 4.8 5.3 6.0 - YouTube Click to view on Bing4:002004 silverado head gasket replacement GM 4.8 5.3 6.0 HEAD GASKET REPLACEMENT STEP BY STEP 1999-2006 5 Chevy Silverado (Sierra gmc chevy 4.8 5.3 6.0 low oil pressure fixAuthor: FantasyCustoms4LifeViews: 348K Chevy 6 Specs | It Still Runs From 2003 through 2006, Chevy manufactured a Silverado 1500 SS. This truck used a 6.0 liter V8 that was externally identical to HD models. This engine produced 345 hp at 5,200 rpm and 380 foot-pounds of torque at 4,000 rpm. This engine had the same four-inch bore and 3 inch stroke as the HD version.