Crower 66015JR-16 Features:

Crower 66015JR-16 hydraulic Johnson lifters, set of 16 for Ford 221, 302, 351, 370, 400, 429, and 460 applications. Slow leak-down hydraulic flat tappet design with a heavy-duty snap ring for improved valvetrain control and high-RPM stability. Also fits Ford inline-6 240 and 300 engines; engineered to complement hydraulic flat tappet camshaft installations and cam swaps. Specifications include 0.874 in. outside diameter, 1.660 in. seat height, and 103.7 g weight per lifter; manufactured in the USA.

Hydraulic Johnson Lifters Slow Leak-down Heavy-duty Snap Ring Hi-lube Features:

• Set of 16 hydraulic flat-tappet lifters for Ford 221, 302, 351, 370, 400, 429, 460, 240 and 300 applications
• Slow leak-down valvetrain design for improved high-rpm stability and consistent hydraulic control under load
• Heavy-duty snap ring construction for added lifter retention and durability in demanding performance use
• Hi-Lube oiling feature for enhanced lubrication, reduced wear, and improved compatibility with new flat-tappet cams
• 0.874 in. OD, 1.660 in. seat height, 103.7 g weight per lifter, Johnson-style hydraulic lifter design for flat-tappet setups