Crower 66000JX3-1 Features:

Crower hydraulic flat-tappet lifters for Chevy 6-cylinder and 8-cylinder engines, Part Number 66000JX3-1 Johnson Cam Saver oiling with a 0.0025 groove from the oil band to the lifter face helps reduce lobe wear Ball-check oil control valving and precision radius faces support quick break-in and consistent hydraulic operation Specially machined flats deliver 12 to 16 oz. more oil per minute per lobe with only a nominal 1 to 2 lb oil pressure drop

Hydraulic Camsaver Johnso Chevy 8 Cyl Johnson Hydraulic Flat-tappet Features:

• Hydraulic flat-tappet lifters for Chevy 6-cylinder and 8-cylinder engines with 0.842 in. OD and cam-saver oiling groove for added lobe protection
• Ball-check oil control valving with precision-radius lifter faces for stable hydraulic operation and quick break-in performance
• Cam-saver .0025 groove routes 20% to 30% more oil to lobe and lifter faces to help reduce premature wear and failure
• Specially machined flats direct 12 to 16 oz. of extra oil per minute at each lobe with only a 1 to 2 lb oil pressure drop
• U.S.-made performance lifter set engineered for hydraulic flat-tappet Chevy applications requiring improved lubrication and durability