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AFM Delete Kit, 2004 & Up 4.8/5.3 GM LS Engines
AFM Delete Kit, 2004 & Up 4.8/5.3 GM LS Engines

AFM Delete Kit, 2004 & Up 4.8/5.3 GM LS Engines

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AFM Delete Kit, 2004 & Up 4.8/5.3 GM LS Engines
AFM Delete Kit, 2004 & Up 4.8/5.3 GM LS Engines
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Part # 910532004
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The difference between and LS truck or suv motor and a fire breathing Corvette is a lot less than you think! Upgrading camshafts on the GM LS motor is one of the quickest 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 4.8/5.3/6.0 came from the factory with Active Fuel Management, which disabled cylinders to meet EPA emission requirements.

Specific cams are built for these economy AFM motors that significantly reduce power. Replacement aftermarket and performance OE cams are not compatible with these shut down lifters. This great kit from Speedway compiles factory Gm and trusted aftermarket suppliers to retrofit your AFM LS engine to full 8 cylinder operation by replacing the lifters. 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. Reprograming of factory ECU will be required to remove AFM, or an aftermarket Ecu. This kit is the most economical on the market, we made sure it was!

Don’t 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
  • Fits 4.8 & 5.3 engines (3.91” max bore headgaskets)
  • Not for sale in California

Kit contains:

  • 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
Some parts are not legal for use in California or other states with similar laws/regulations

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What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Chevrolet Performance Parts 12498544 LS1/LS6 Cylinder Head Gasket
    Qty x 1
  • Fel-Pro TCS45993 Chevy LS Timing Cover Gaskets
    Qty x 1
  • TTY Headbolts, 04 & Up LS Engines
    Qty x 1
  • Chevrolet Performance Parts 12557840 Harmonic Balancer Bolts
    Qty x 1
  • LS7 Lifter Tray
    Qty x 4
  • LS7 Roller Lifter
    Qty x 2
  • Chevrolet Performance Parts 12598832 LS2/3/7 Engine Valley Covers
    Qty x 1
  • Chevrolet Performance Parts 12588670 Timing Chain Dampeners
    Qty x 1

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Q & A


  • Once you're ready to start selecting valve train components, we have some useful tips and tools that should boost your performance. We discuss proper valve-springs, pushrod length, and rocker arm ratios.
    Learn More
  • 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 More
  • The art of selecting a camshaft that performs right in your street rod may become easier with experience, but the choice is less of a guessing game once you have a few of the basics, found in this latest article from Speedway.
    Learn More
  • Need help selecting the best cylinder head gaskets for your engine? Click here to learn the differences between copper, steel shim and MLS head gaskets. Plus install tips!
    Learn More

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