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LS7 Roller Lifters, Set/8 For DoD/AFM Delete

  • Based on 2 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Speedway Motors

Arrives Nov 25 – Nov 29
Order within 4 hours and 49 minutes
Available payment plans shown during checkout

Features

  • Latest design in roller lifters for LS motors
  • Replacement for factory LS7 lifter
  • Upgrade for LS1-6 motors, same installed height
  • Set includes 8 lifters

Description

LS7 lifters for all your performance LS needs - right here at Speedway Motors! We packaged together a set of 8 lifters for one simple reason - many hotrodders extracting horsepower from the LS engines are doing away with the OE AFM/DoD systems and need a set of 8 "standard" lifters! Latest design in roller lifters for LS motors. Replacement for factory LS7 lifter. Upgrade for LS1-6 motors, same installed height. Sold as a set of 8 for DoD/AFM delete requirements when replacing the 8 lifters for cylinder s 1, 4, 6 & 7. The GM LS engines all share the standard GM roller lifter. The lifter was developed in the GenII LT1 and Vortec Engines. This HL-2148 is what most people commonly refer to as the LS7 lifter. In the engines equipped with AFM, the HL-7011 controls the de-activated cylinders. For instance, this HL-7011WT is known as the HL178 hydraulic lifter. Today’s GM engines are DFM Dynamic Fuel Management. The DFM is different from AFM. Lifter failure is the fuse of your engine The spring on the top of the lifter body is designed by General Motors as the fuse of the valvetrain. If the vehicle computer activates the VLOM at the wrong ignition valve timing, the spring is designed to collapse. This saves the rest of the engine from damage. As long as the tolerances of the valves, valve springs, pistons, rocker arms, pushrods are to the manufacturer’s original specifications. Here at Elgin Industries, we offer auto parts equivalent to OEM interchange. Intermittent ground fault with your vehicle PCM is the most common cause for lifter failure. The collapsed spring is a mechanical fuse designed to compensate for electrical failure. To prevent the issue from reoccurring, you should further inspect the electrical system. This includes GenIII, GenIV, and GenV LS engines. Replacement auto parts for the AFM LS engine When replacing the lifters, be sure to change a few other parts too. Lifter guides can fail from polymer fatigue


Manufacturer: ‎Speedway Motors


Brand: ‎Speedway Motors


Model: ‎Speedway Motors


Item Weight: ‎3 pounds


Product Dimensions: ‎3.4 x 2.1 x 2.1 inches


Manufacturer Part Number: ‎91012499225


Date First Available: March 6, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 25 – Nov 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • 5.0 out of 5 stars LS7 lifters
LS7 lifters will be a great addition when upgrading my 6.2 going in my 2009 pickup.
Reviewed in the United States on September 15, 2021 by Gerald Thompson

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