Product details:

The difference between an LS Truck or SUV engine and a fire breathing Corvette is a lot less than you think! Upgrading the camshaft on the GM LS engine is one of the most cost effective ways to add power, as most other engine components are similar between the different performance levels of LS engines. - Its likely your Generation IV5.3 (LY5, LC9, LH6, LMG, LS4) came from the factory with a Active Fuel Management or Displacement on Demand (AFM, DOD, etc.) system, which disables the cylinders when not under load or the vehicle is coasting to meet strict EPA emission requirements. - Specific cams are built for these economy AFM engines that significantly reduce power. Replacement aftermarket and performance OE cams are not compatible with these shut down lifters. This all-in-one AFM Delete Kit from Speedway Motors compiles OEM GM and trusted aftermarket suppliers to retrofit your AFM LS engine to full 8 cylinder operation by replacing the lifters. Reprograming of the factory ECU will be required to remove AFM, or an aftermarket ECU.This is the most economical AFM Delete Kit on the market! Dont forget to pick up a three bolt cam gear, (355-12586481) as most aftermarket and Non-AFM camshafts are three bolts instead of one. - For engines 2004 and up that have two lengths of headbolts - AFM Delete Kit contains:16 LS7 style lifters4 lifter trays2 Headgaskets - Timing cover gasket - Front main seal - Water pump gaskets - Torque to yield head bolts - Torque to yield balancer bolt - L92 Ls valley cover - Valley cover gasket - LS timing chain dampener