Crower 66201E-16 Features:

Fits Big Block Chevy 396-454 V8 engines with tall lifter bore blocks; full-body solid roller lifters, 0.842 in. OD, sold as a 16-piece set. Handles extreme valve spring pressures from 900 to 1000 lb with CNC-machined, heat-treated bodies for wear resistance, rigidity, and axle trueness. Features NBO and HIPPO oiling with EDM-fed lubrication from the oil band to the bearings to increase oil delivery to critical high-load areas. Crowned bearings and crowned outer races help reduce lobe tracking, while captive stainless steel blades use an orbit-formed locking design for retention.

Enduramax Roller Lifters BBC 396-454 0.842 In. Mechanical Roller Features:

• Fits Big Block Chevy 396-454 with tall lifter bore, 0.842 in. OD full-body solid roller design for precise valvetrain control and stable high-RPM operation
• Handles 900-1000 lb valve spring pressure with CNC-machined, heat-treated bodies for wear resistance, rigidity, and improved axle trueness under extreme loads
• EDM-fed HIPPO pin oiling and NBO needleless bearings deliver more oil to high-load areas, extending cycle life and supporting up to 200 percent longer service life
• Crowned bearings and crowned outer races reduce lobe tracking, while orbit-formed pins and captive stainless steel blades eliminate loose snap-ring concerns
• Complete 16-piece set of fully rebuildable mechanical roller lifters with premium stainless steel blade construction for long-term race-ready durability