Hylift Johnson High Performance Slow Bleed Drop-In Hydraulic Roller Lifters
2002–2026 Chrysler, Dodge, Ram, Jeep 5.7L Hemi / 6.1L & 6.4L SRT & ScatPack / 6.2L SRT Hellcat
A-2335S
Overview:
The Hylift Johnson High Performance Slow Bleed Drop-In Hydraulic Roller Lifters are engineered for enthusiasts and professional builders seeking maximum valve train efficiency and durability in Chrysler, Dodge, Ram, and Jeep engines equipped with 5.7L Hemi, 6.1L, 6.4L SRT, ScatPack, and 6.2L SRT Hellcat powerplants from 2002 through 2026. These lifters feature advanced slow leak down internals that maintain the highest spring pressure without sacrificing valve lift at any RPM, effectively preventing lifter collapse and reducing excessive valve train noise. Designed as direct drop-in replacements, they require no lash adjustments and deliver a full cam profile translation for improved engine performance and reliability.
Ideal for high-performance street and track applications, these lifters outperform standard hydraulic and mechanical lifters by balancing cylinder operation and minimizing wear, ensuring consistent power delivery and longer engine life.
Key Features:
These lifters incorporate specialized technology to optimize valve train function and durability:
- Slow bleed-down design with leak down times between 90 to 120 seconds for near mechanical lifter performance
- Enclosed bearing construction for enhanced rigidity and increased surface area, reducing wear on the engine block
- Positive retainer system replacing the OEM wire clip for improved retention and reliability
- Extremely tight internal clearance of less than 0.000120” (1/30th of a human hair) for superior hydraulic control
- Capable of handling higher valve spring pressures without collapsing, unlike standard or “R” lifters
- Hydraulic design eliminates lash adjustments while fully translating camshaft profiles to the valves
- Balances all cylinders with minimal leak down variation for consistent valve timing and performance
- Reduces valve train wear and failure compared to mechanical lifters under high RPM conditions
Construction & Design:
Hylift Johnson lifters are precision-engineered using high-grade materials and advanced manufacturing techniques to meet the demands of modern high-performance engines. The enclosed bearing design enhances structural integrity and distributes load more evenly, minimizing wear on lifter bores. The slow bleed-down internals are meticulously calibrated to maintain hydraulic pressure longer, allowing these lifters to behave almost like mechanical units while retaining the benefits of hydraulic operation. The positive retainer system ensures secure retention of internal components, increasing durability under aggressive driving conditions.
The extremely tight clearance between the lifter body and piston assembly requires exacting production standards, resulting in a product that delivers exceptional reliability and performance even under elevated spring pressures and high RPM operation.
Performance & Sound
In testing, these slow bleed lifters have demonstrated increased power output and higher RPM capability compared to conventional hydraulic lifters. By preventing lifter collapse and maintaining full valve lift, they help maximize engine breathing and combustion efficiency. Additionally, the design reduces valve train noise and harshness, providing a smoother and more refined engine sound without sacrificing performance. These lifters are especially beneficial in applications where valve float is controlled, as they maintain valve timing integrity and prevent power loss.
Installation & Fitment:
These lifters are designed as direct drop-in replacements for compatible Chrysler, Dodge, Ram, and Jeep engines with no modifications required. Their hydraulic nature eliminates the need for lash adjustments, simplifying installation and ensuring immediate compatibility with factory valve springs and camshafts. Proper fitment is critical to performance, and these lifters are compatible with a wide range of models and years, including:
- 2005–2010 Chrysler 300, 2011–2014 Chrysler 300, 2015–2024 Chrysler 300
- 2002–2010 Dodge Ram, 2011–2018 Ram 1500/2500/3500, 2019–2026 Ram 1500/2500/3500/1500 Classic
- 2004–2009 Dodge Durango, 2011–2026 Dodge Durango
- 2006–2010 Dodge Charger, 2011–2014 Dodge Charger, 2015–2023 Dodge Charger
- 2008–2010 Dodge Challenger, 2011–2014 Dodge Challenger, 2015–2023 Dodge Challenger
- 2005–2011 Dodge Dakota, 2005–2008 Dodge Magnum
- 2005–2010 Jeep Commander, 2005–2010 Jeep Grand Cherokee, 2011–2021 Jeep Grand Cherokee, 2022–2026 Jeep Grand Cherokee
- 2018–2026 Jeep Wrangler, 2022–2026 Jeep Grand Wagoneer, 2022–2026 Jeep Wagoneer
Installation should be performed by a qualified technician to ensure proper lifter seating and engine performance.
What's Included:
- Set of Hylift Johnson Slow Bleed Drop-In Hydraulic Roller Lifters (quantity as required for engine)
- Positive retainers installed
- Installation instructions
Ideal For:
These lifters are perfect for performance enthusiasts, engine builders, and racers who demand reliable valve train operation under high spring pressures and elevated RPMs. They are especially suited for:
- High-performance street and track vehicles with Chrysler Hemi and SRT engines
- Upgraded camshaft installations requiring precise valve lift control
- Engines prone to lifter collapse or excessive valve train noise with stock lifters
- Builders seeking a hydraulic lifter that approaches mechanical lifter performance without lash adjustments
