AFM Delete Kit, 2004 & Up GEN IV 6.0L LS Engines
L76 Chevy LS V8, LY6 Chevy LS V8
Build Your KitYou're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
The difference between an LS Truck or SUV engine and a fire breathing Corvette is a lot less than you think! Upgrading the LS camshaft 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.
It’s likely your Generation III/IV 6.0 GM LS Engine came from the factory with an 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 LS 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!
As this kit is aimed to decrease emissions by removing the cylinder shut down function, it is not C.A.R.B. compliant and not for sale in California or emission tested vehicles.
Don’t forget to pick up a three bolt cam gear, (355-12586481) as most aftermarket and Non-AFM LS camshafts are three bolts instead of one.
- For engines 2006 and up that have two lengths of headbolts
- Fits 6.0 engines (4.020” max bore headgaskets)
- Not for sale in California
- Allows use of aftermarket/performance Non-AFM LS Camshaft
- 16 LS7 style lifters
- 4 lifter trays
- 2 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
With your AFM system disabled, be sure to check out our LS cam selection to start adding power!
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
What's In The Kit
Chevrolet Performance Parts 12589227 Composition Head GasketsPart # 35512589227Qty x 2
Fel-Pro TCS45993 Chevy LS Timing Cover GasketsPart # 344TCS45993Qty x 1
TTY Headbolts, 04 & Up LS EnginesPart # 91017800568Qty x 1
Chevrolet Performance Parts 12557840 Harmonic Balancer BoltsPart # 35512557840Qty x 1
LS7 Roller Lifters, Set/8 For DoD/AFM DeletePart # 91012499225Qty x 2
LS7 Lifter TrayPart # 91012595365Qty x 4
Chevrolet Performance Parts 12598832 LS2/3/7 Engine Valley CoversPart # 35512598832Qty x 1
Chevrolet Performance Parts 12588670 Timing Chain DampenersPart # 35512588670Qty x 1
Q & A
What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.
Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!
Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.
A guide on how to check piston to valve clearance to prevent interference. See what tools are used to make this process easier.
Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.
Follow along as we install a Pete Jackson Noisy Gear Drive on a Chevy 454. Learn about the installation process from Speedway Motors Street Tech Kevin.
To get the longest life and most performance out of your engine, it's important to have the valve lash set correctly. Here we show you how to set valve lash on a small block Chevy using a hydraulic lift camshaft.