Gledewen Camshaft Kit for 5.3L V8 AFM Disabled – Alloy Steel Warranty

Description

Product Overview

The Gledewen AFM disabled camshaft kit is engineered specifically for the 5.3L V8 engines found in a range of 2007‑2013 Chevrolet Avalanche, Suburban, Silverado, and GMC Sierra, Yukon, and related models. Each component is manufactured from high‑strength alloy steel, delivering exceptional rigidity and resistance to wear under demanding operating conditions. The kit includes a precision‑machined camshaft, a valley plate, MLS head gaskets, a full set of valve lifters, a front timing cover gasket set, and all necessary installation hardware such as head bolts and crankshaft bolts. This comprehensive package eliminates the need for separate part sourcing, reducing installation time and potential for errors.

Material selection focuses on durability; the alloy steel construction provides a balance of hardness and flexibility, allowing the camshaft to maintain proper timing while absorbing the stresses of high‑rpm operation. The MLS (Multi‑Layer Steel) head gaskets ensure a reliable seal between the cylinder head and engine block, preventing coolant and oil leaks that could compromise performance. All components are coated with a corrosion‑resistant finish to extend service life, even in harsh environments.

Dimensions of the kit are designed to match the OEM specifications of the target vehicles, ensuring a vehicle‑specific fit without the need for custom modifications. The total weight of the kit is approximately 28.6 pounds, making it manageable for a single technician to handle with standard tools. The included hardware is pre‑matched to the camshaft and head, simplifying the assembly process and guaranteeing proper torque specifications.

Gledewen has incorporated a 24‑month warranty that covers any manufacturing defects, providing confidence to both professional mechanics and DIY enthusiasts. Should any component fail within the warranty period, the company offers a hassle‑free replacement or refund, reinforcing their commitment to quality and customer satisfaction.

Overall, this camshaft kit offers a blend of performance enhancement, reliability, and ease of installation, making it an ideal upgrade for owners seeking to disable the Active Fuel Management (AFM) system and achieve smoother power delivery across the entire engine speed range.

Usage

The kit is intended for use in vehicles that originally featured the AFM system, which deactivates cylinders under light load to improve fuel economy. By installing the Gledewen camshaft kit, the AFM system is effectively disabled, allowing all eight cylinders to fire continuously. This results in a more linear power curve, improved throttle response, and increased low‑end torque, which is especially beneficial for towing, off‑road driving, and performance applications.

Installation is best performed by a qualified technician or an experienced DIY enthusiast with access to a full engine hoist, torque wrench, and standard automotive tools. The process begins with the removal of the existing camshaft, timing cover, and associated hardware. After cleaning the mating surfaces, the new camshaft and valley plate are installed, followed by the placement of the MLS head gaskets and valve lifters. The timing cover gasket set is then applied, and the front timing cover is reinstalled using the supplied bolts. Final torque specifications should be verified against the manufacturer’s service manual to ensure proper sealing and component longevity.

After installation, the engine should be cranked to verify proper camshaft rotation and valve timing before a full start‑up. It is recommended to perform a break‑in procedure that includes a series of idle periods and moderate load cycles to allow the new components to seat correctly. Regular oil changes with high‑quality synthetic oil will further protect the alloy steel components and maintain optimal performance.

Why Choose Us

Gledewen stands out in the aftermarket camshaft market due to its rigorous quality control processes and dedication to engineering excellence. Each camshaft undergoes precision CNC machining, followed by a thorough inspection for surface finish, dimensional accuracy, and material integrity. The company sources alloy steel from reputable suppliers, ensuring consistent composition and heat‑treatment standards that meet or exceed OEM requirements.

Customer support is a core pillar of Gledewen’s service model. Buyers receive direct access to a knowledgeable technical team that can assist with fitment questions, installation guidance, and warranty claims. The 24‑month warranty reflects the confidence Gledewen has in its products, and the streamlined replacement process minimizes downtime for customers.

In addition to durability, the kit is designed for performance. By eliminating the AFM system, drivers experience smoother power delivery, reduced vibration, and a more engaging driving experience. The alloy steel camshaft’s increased rigidity also supports higher horsepower potential when paired with complementary performance upgrades such as intake, exhaust, and tuning.

Key Features

• High‑strength alloy steel camshaft provides superior durability and resistance to wear.
• Complete installation package includes camshaft, valley plate, MLS head gaskets, lifters, and all necessary hardware.
• Designed for a vehicle‑specific fit on 2007‑2013 Chevrolet and GMC 5.3L V8 models, eliminating the need for custom modifications.
• Corrosion‑resistant coating protects components in harsh environments, extending service life.
• 24‑month warranty with responsive after‑sales support ensures peace of mind and hassle‑free replacements.

FAQ

Will this kit fit my 2009 Chevrolet Silverado 1500?

Yes. The Gledewen camshaft kit is engineered for the 5.3L V8 engine found in 2007‑2013 Chevrolet Silverado 1500 models, including the 2009 year. It matches the OEM specifications for camshaft profile, timing, and bolt pattern, ensuring a direct fit without the need for additional modifications.

Do I need any special tools to install the kit?

Standard automotive tools are sufficient for installation, including a torque wrench, socket set, and a camshaft alignment tool. While a full engine hoist is recommended for ease of access, the kit does not require proprietary equipment. Detailed installation instructions are provided, and Gledewen’s technical support can assist with any questions.

How does disabling the AFM system affect fuel economy?

Disabling AFM eliminates the cylinder deactivation feature, which may result in a slight decrease in fuel economy under light‑load conditions. However, many owners report that the trade‑off is worthwhile for the gains in low‑end torque, smoother power delivery, and improved towing performance. The impact on fuel consumption varies based on driving habits and vehicle load.

What is covered under the 24‑month warranty?

The warranty covers any manufacturing defects in the camshaft, valley plate, gaskets, lifters, and included hardware. If a component fails due to a defect within the warranty period, Gledewen will provide a replacement or refund. The warranty does not cover damage caused by improper installation, misuse, or unrelated engine failures.

Can I use this kit with performance upgrades like a cold air intake or exhaust system?

Absolutely. The camshaft kit is compatible with common performance modifications. In fact, many users pair the kit with a cold air intake, high‑flow exhaust, and ECU tuning to maximize horsepower and torque gains. As always, ensure that any additional upgrades are installed correctly and that the engine is tuned to accommodate the changes.