Ls Engines 6.0 4.8 5.3 6.2

Ls Engines 6.0 4.8 5.3 6.2 ECSB=extendedcab short bed ECSB=extended cab short bed CCLB= crew cab short bed etc. SCMB=standard cab medium bed CCMB=crew cab medium bed EXLB=extended cab long bed SE/CCSB Standard, Extended & Crew Cab