High-performance hydraulic lifter with rocker arm retention kit for Toyota 2GR and 2ZR
The high-performance hydraulic lifter kit was developed for sportily used and performance-enhanced Toyota and Lotus vehicles with 2GR or 2ZR engines. It improves the control of the roller rocker valve train at high RPM and reduces the risk of a rocker arm coming loose from its intended position.
The system combines specially designed hydraulic valve clearance compensation elements with additional retaining clips for the rocker arms. This makes it particularly suitable for engines with increased maximum RPM, sport camshafts, and reinforced valve trains.
The weak point of the standard valve train
The engine families ZR and GR operate with a roller rocker valve train. This design allows for reliable and quiet operation and provides good conditions for performance-oriented camshaft profiles.
At speeds above approximately 7,300 RPM, the standard hydraulic valve clearance compensation elements can reach their control limits. If the rocker arm is no longer adequately controlled, it can jump out of its intended position and completely detach.
A detached rocker arm causes the respective valve to no longer be operated properly. In addition, severe consequential damage can occur, including to:
Cylinder head
Camshaft
Valve cover
Rocker arms
Valves and other valve train components
Improved hydraulic lifters for high RPMs
The optimized hydraulic lifters – technically hydraulic valve clearance compensation elements – provide improved control of the rocker arms at high engine speeds.
They have been specifically designed to accommodate additional retaining clips. These clips mechanically secure the rocker arms and reduce the risk of them detaching from their position due to vibrations, valve float, or dynamic load peaks.
The combination of improved hydraulic valve clearance compensation and mechanical rocker arm retention creates additional safety reserves for demanding engine configurations.
Retaining clips for the rocker arms
The retaining clips included in the kit keep the rocker arms in their intended position even under high dynamic loads.
This significantly reduces the risk of the rocker arms jumping out. This is particularly relevant for the following applications:
Increased maximum RPM
Sport camshafts
Reinforced valve springs
Titan valve spring cups
High-performance engines
Frequent full-load operation
Track days and racetrack use
Suitable for
Toyota and Lotus engines of type 2GR-FE
Toyota and Lotus engines of the 2ZR series
Lotus Exige V6
Lotus Evora
Lotus 3-Eleven
Lotus Emira V6
Lotus Elise with 2ZR engine
Other vehicle applications subject to technical review
The exact compatibility must be checked before ordering based on engine code, model year, vehicle model, and valve train configuration.
Not intended for the Toyota 2GR-FKS.
Engine-dependent scope of delivery
The kit is supplied according to the respective engine:
Version for Toyota 2ZR
16 × optimized hydraulic valve clearance compensation elements
Matching rocker arm retaining clips
Version for 16 valve positions
Version for Toyota 2GR
24 × optimized hydraulic valve clearance compensation elements
Matching rocker arm retaining clips
Version for 24 valve positions
The required engine version must be clearly specified when ordering.
Product details
High-performance hydraulic lifter kit
For Toyota 2GR and 2ZR engines
Hydraulic valve clearance compensation elements in optimized design
Additional retaining clips for the rocker arms
Improved control of the valve train at high RPMs
Reduced risk of popping rocker arms
Improved control against pumping or collapsing of the hydraulic lifters
Designed for increased engine speeds
Suitable for sport camshafts
Compatible with reinforced valve springs
Compatible with titanium valve spring retainers
Suitable for performance-enhanced engines
Recommended for track days and racing use
16-piece hydraulic lifter version for 2ZR engines
24-piece hydraulic lifter version for 2GR engines
Recommended combination
For engines with significantly increased maximum RPM, we recommend using the hydraulic lifter and retaining clip kit as part of a fully tuned valve train.
Depending on RPM, camshaft profile, and application, the following may also be required or recommended:
Reinforced valve springs
Titanium valve spring retainers
High-performance valves
Suitable sport camshafts
Customized engine management
Professionally programmed rev limiter
Important RPM note
The kit alone does not automatically increase the permissible maximum RPM of the engine.
Engine speed must never exceed the mechanical load limits of the other rotating and oscillating engine components. This includes in particular:
Pistons
Connecting rods
Crankshaft
Connecting rod bearings
Valves
Valve springs
Spring retainers
Camshafts
Timing drive
An increase in maximum RPM that is not coordinated with the complete engine setup can lead to severe engine damage.