What makes these lifters quieter than others?

The smaller oil volume within the patented hydraulic cartridge and the stiff lifter body design contribute to reduced body distortion. This combination helps minimize startup noise and ensures a quieter overall operation.

Can I rebuild these lifters myself?

Yes, the hydraulic element of these patented lifters is designed to be serviceable. This means you can rebuild them in your own garage, which can be a cost-effective option for maintenance.

What is the benefit of the HCT design?

The Hydraulic Cartridge Technology (HCT) provides the most consistent performance of any set of lifters. Its self-contained design and reduced oil volume lead to more stable bleed rates, even with oil aeration, ensuring reliable operation at high RPMs.

COMP Cams LS Evolution Retro-Fit Hydraulic Roller Lifters 89

Name: Comp Cams GM LS Evolution Retro-Fit Hydraulic Roller Lifters - Set of 16
Brand: COMP Cams
SKU: comp-cams-comp-cams-gm-ls-evolution-retro-fit-hydraulic-roller-lifters-set-of-16-t14-586351
Price: 831.86 USD
Availability: InStock

Comp Cams GM LS Evolution Retro-Fit Hydraulic Roller Lifters - Set of 16

$831.86

Only 1 left in stock

Comp Cams GM LS Evolution Retro-Fit Hydraulic Roller Lifters - Set of 16. Offers consistent performance and quiet operation for high-RPM builds.

Key Features

This set includes 16 hydraulic roller lifters for GM LS engines.
Features patented Hydraulic Cartridge Technology (HCT) for consistent performance.
Reduced oil volume in the cartridge makes them less affected by oil aeration.
Offers consistent bleed rates between lifters for quieter startup and high-RPM performance.
The stiff lifter body design minimizes distortion for reliable hydraulic operation.
The hydraulic element is serviceable, allowing for in-garage rebuilding.

This set of 16 lifters is designed for GM LS engines. Please verify compatibility with your specific engine application.

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Product Details

If you're rebuilding the top end of your GM LS engine and looking for lifters that offer consistent performance and quiet operation, these COMP Cams Evolution Retro-Fit Hydraulic Roller Lifters are a solid option. They're designed to handle the demands of high-performance builds, ensuring your engine runs smoothly and reliably, even at higher RPMs.

What sets these lifters apart is their patented Hydraulic Cartridge Technology (HCT). This design uses a self-contained hydraulic cartridge with a reduced oil volume, making it less affected by oil aeration. This results in more consistent bleed rates between each lifter, which translates to a quieter startup and excellent performance when you're pushing the engine hard. The smaller volume within the cartridge also contributes to a responsive feel. Plus, the design creates an incredibly stiff lifter body, which greatly reduces distortion and further ensures consistent hydraulic performance.

These aren't just a basic replacement part; they're a bespoke design built from the ground up for performance and durability. A notable feature is that the hydraulic element is serviceable, meaning you can rebuild them in your own garage if needed. This set includes 16 lifters, enough for a complete engine rebuild.