Crower 66015RM3-1 Features:

Crower Rev-Max CamSaver hydraulic flat tappet lifter, part number 66015RM3-1, single lifter for Ford 221, 302, 351, 370, 400, 429, and 460 V8 applications with 0.874 in. lifter bore CamSaver high-lube flats direct 20% to 30% more oil to cam lobes and lifter faces, adding about 12 to 16 ounces per minute per lobe while dropping engine oil pressure only 1 to 2 lb Rev-Max slow leak-down internals help maintain valve train stability at higher RPM, while the precision-ground radius face and finish support quick break-in and trouble-free operation Built for severe-duty use and high spring pressures with a heavy-duty snap ring that helps prevent failure under extreme operating conditions and protects against premature lobe scuff

Hydraulic Lifters Rev-max Camsaver 0.874 In. Ford Hydraulic Flat Features:

• Slow leak-down internals for high-rpm valve train stability and severe-duty flat-tappet performance in 0.874 in. lifter bores
• CamSaver high-lube flats feed 20% to 30% more oil to cam lobes and lifter faces for anti-scuff protection
• Heavy-duty snap ring and precision-ground radius face for quick break-in and reliable high-spring-pressure operation
• Fits Ford 221, 302, 351, 370, 400, 429, and 460 V8 applications using 0.874 in. hydraulic flat-tappet lifters
• 1.660 in. seat height and approx. 103.8 g weight for durable Rev-Max lifter control with minimal 1 to 2 lb oil-pressure drop