Budget LS4 DOD / AFM Delete Kit
Budget LS4 DOD / AFM Delete Kit
For years we have had requests for a more budget oriented alternative to the popular Excalibur DOD / AFM Delete package. Recognizing that not everyone is chasing big power, we are excited to answer that call and introduce the Peasant Pieces Package.
The Peasant Pieces Kit was developed to be the most comprehensive package for enthusiasts operating on a tight budget. It provides all the primary components and gaskets necessary to perform the job without some of the extra fluff found in our more expensive offering.
By utilizing a low lift camshaft, we can skip out on the fancy valve springs and one-piece pushrods found in the Excalibur package. Despite being low-lift to work in conjunction with your OEM valvetrain hardware, our camshaft still provides an aggressive exhaust note at idle and modest bump in power over the OEM Non-DOD cams found in other "budget" kits.
This package was engineered to get you back on the road and fast. This is a regularly stocked item with no lead time.
Not sure what the DOD system is all about?
The bold letters stamped on the plastic LS4 engine cover either read Displacement on Demand (DOD) or Active Fuel Management (AFM), depending on the year and model. Despite the difference in terminology, the cylinder deactivation system referenced is the same. Its almost a cruel joke; GM’s friendly reminder that they spent additional time and resources to integrate a technology proven to fail consistently. Addressing the shortcomings of this engineering flop should be at the top of any enthusiast’s modification list.
DOD or AFM was marketed as a fuel saving strategy implemented on various LS engines across GM’s most popular models. Using a solenoid based lifter manifold, specialty spring-loaded lifters as well as a unique camshaft, the engine control module can deactivate 4 cylinders under light load scenarios. When active, the valves remain closed for the 4 disabled cylinders and the injectors for the respective holes are disabled in an attempt to reduce fuel consumption and increase mileage. The engine operates at 50% of its capacity (essentially acting as a 4 cylinder) while the remaining inactive 4 cylinders are simply along for a rotational ride.
While the system sounds great in theory, it has proven to be extremely problematic. The specialty lifters are prone to failure and create a lack of compression or misfire on the affected cylinder. Unfortunately, servicing the lifters requires the removal of the cylinder heads which can be very labor intensive. LS4 King recognizes that it is not a matter of IF the system will fail, but WHEN. As a result we’ve worked with our partners in the industry to develop the most comprehensive DOD / AFM Delete Kits on the market with only top tier or OEM components.
The Peasant Pieces DOD / AFM Delete Package Consists of the following components:
At the heart of our Peasant Pieces Kit, you will find the low-lift camshaft. With the choppy idle and modest bump in power it will be no secret that you're a long ways from stock.
Components & Hardware:
-OEM Style Cylinder Head Bolts
-OEM Style Camshaft Bolts
-OEM Style Harmonic Balancer Bolt
-Standard Travel LS7 Style Lifter Set
-GM Lifter Trays
-GM Valley Cover & Hardware
-Camshaft Retaining Plate & Hardware
Gaskets & Seals:
Unlike other packages on the market, each kit from LS4 King features a blend of OE quality gaskets and seals based on the original construction.
-MLS Head Gaskets
-Valve Cover Gaskets
-Valve Cover Bolt Grommets
-MLS Exhaust Manifold Gaskets
-Valley Cover Gasket
-Valley Cover O-Ring Seals
-Timing Cover Gasket
-Harmonic Balancer Seal
-Aluminum Water Manifold Gaskets
-Steam Port Plug & Crossover Seals
2007+ Model Year Note:
Starting in 2007, GM made the transition to a 1-Bolt camshaft as well as a new style chain dampener. To facilitate the DOD Delete on 2007 and newer LS4 engines, you will need a replacement 3-bolt camshaft sprocket as well as the LS2 style chain dampener to replace the spring loaded style which is prone to failure.
While disabling DOD / AFM electronically in the tune will prevent the system from activating, this method should NOT be considered a DOD Delete. It is a step in the right direction and should certainly prolong the life expectancy of your engine, however it is not the full solution. Even when disabled, you still have the failure prone mechanical components in your engine which will eventually expire.
|OEM Application List
|2005-2008 Pontiac Grand Prix GXP 5.3L V8
|2006-2007 Chevrolet Monte Carlo SS 5.3L V8
|2006-2009 Chevrolet Impala SS 5.3L V8
|2008-2009 Buick Lacrosse Super 5.3L V8
|Swap Application List
|Conversions Using 2005-2009 LS4
Installation of these components will require a tune. Do NOT try to operate your vehicle after installation without consulting a competent tuner.