These engines are all-aluminum and use Active Fuel Management (AFM), Variable Valve Timing (VVT), and are Flex Fuel Capable (E85). The L8B uses E-assist, an electric motor to supplement horsepower and torque increasing fuel mileage. The L82 is an updated L83 available from 2019 to 2022 in Chevy and GMC 1500 pick-up trucks only.

BTR STOCK CAM AND DOD CONVERSION FOR L84 5.3 GEN V TRUCK ENGINES Have a Gen V GM LT 5.3 truck engine and need to get rid of the troublesome Active Fuel Management (AFM) Lifter setup? We've got a one-stop kit for you. Choose BTR quality parts for a conversion kit that fits your needs exactly!

The L84 is a 5.3 liter, eight-cylinder engine from General Motors used in pickup trucks and SUVs. Featuring an OverHead Valve (OHV), or “push-rod” design” in a “V” configuration, the L84 is...

2019年7月25日 · Versus the previous L83 or the current L82, the L84 (new for 2019) replaces AFM with the more advanced Dynamic Fuel Management (DFM) system. DFM has cylinder …

2021年3月15日 · Chevrolet and GMC will temporarily stop producing 5.3L engines with Active Fuel Management and Dynamic Fuel Management in the face of semi-conductor shortages worldwide. In a memo sent to dealers this morning, General Motors outlined a significant change in the 2021 5.3L L82/L84 engines that feature AFM and DFM.

AFM – active fuel management strategy which deactivates the lifters on specific cylinders. On V8 engines, it deactivates half of the cylinders (1,7,6 and 4) and on V6 engines, it deactivates only 2 of the cylinders (3 and 6). For LTA and LT2 engines, the …

2023年10月13日 · L84 Engine, 5.3L EcoTec3 V8, (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm); featuring available Dynamic Fuel Management that enables the engine to operate in 17 different patterns between 2 and 8 cylinders, depending on demand, to optimize power delivery and efficiency

This kit is designed to remove DOD/DFM from your 2019+ Gen V 5.3 L84 engine. • Choice of AFM delete camshaft (Camshaft change is required when removing AFM from your GenV engine!) -L86 6.2l camshaft upgrade: This camshaft is slightly larger than your factory camshaft.