Crower 66056JX3-1 Features:

0.842 in. OD hydraulic flat-tappet lifter for Pontiac and Oldsmobile V8 applications CamSaver oiling flats route 20% to 30% more oil to cam lobes and lifter faces Rated for reliable operation up to 6500 rpm with aftermarket performance camshafts Precision-ground radius face promotes quick break-in and helps reduce scuffing and wear

Hydraulic Lifters Johnson Pontiac/Olds V8 .842 In. Camsaver Oiling Features:

• 0.842 in. OD hydraulic flat-tappet lifter for Pontiac and Oldsmobile V8 performance valvetrains with Johnson-style design and precise fitment
• CamSaver oiling flats route 20% to 30% more oil to cam lobes and lifter faces for reduced scuffing, wear control, and added lobe protection
• Reliable operation to 6500 rpm with premium hydraulic design suited for aftermarket flat-tappet camshafts in high-demand street and performance builds
• Precision-ground radius face and finish support quick break-in, while proper 0.050 in. preload helps maintain stable valve train function and lifter action
• Use new lifters with a new flat-tappet camshaft; nominal 1 to 2 lb oil pressure drop delivers added lubrication without significant system impact