Pop-Up Mechanical (Solid) Roller LiftersSpring-loaded horizontal barBar allows cam removal without removing manifoldLightweight design reduces overall valvetrain weightMechanical (Solid) Roller Lifters
Vertical barHeat-treated for durabilityMaximum lifter bore contact for less wearNon-critical mass removed to reduce weightHydraulic Roller Lifters
Vertical barHeat-treated steelPrecision groundLightweight yet strong