Crower 66437-16 Features:

Fits Small Block Ford 289, 302, and 351W engines for retro-fit hydraulic roller cam conversions CNC-machined, heat-treated 1-piece lifter bodies reduce weight while maintaining rigidity and axle trueness Longer control-contoured tapered needle bearings increase load capacity and help correct irregular tappet alignment Redesigned bearing slots add shrouding around critical areas to reduce tappet and lifter bore wear

Retro-fit Hydraulic Rolle Small Block Ford Hydraulic Roller Lifters Features:

• Retro-fit hydraulic roller design for 289, 302, and 351W small-block Ford upgrades with zero-lash hydraulic operation and roller-cam performance benefits
• CNC-machined, heat-treated 1-piece body reduces weight while maintaining rigidity, strength, and precise axle trueness under valvetrain load
• Control-contoured tapered needle bearings with redesigned bearing slot increase load capacity and help reduce tappet and lifter-bore wear
• Premium stainless steel alignment blades with captive orbit-formed locking system provide permanent spool attachment without vibration-prone snap rings
• Precision oil-metering holes supply abundant overhead lubrication to help extend pushrod and valve-spring life in small-block Ford applications