Crower 66204E-2 Features:

Fits 1958-1965 Chevrolet 348-409 cu in. engines; Crower EnduraMax full-body mechanical roller lifter pair. Part number 66204E-2 features a .842 in. lifter diameter and .750 in. roller bearing for proper fit. NBO needleless bearing option is engineered for severe valve spring pressures and high-rpm operation. HIPPO high-pressure pin oiling feeds oil directly to the roller bearing assembly to reduce wear.

Enduramax Roller Lifters Chevy 348-409, Mechanical Roller, Nbo/Hippo Features:

• Full-body mechanical roller lifter design for 1958-1965 Chevy 348-409 cu in. engines, matched fit for period-correct valvetrain builds
• NBO needleless bearing option engineered for severe valve spring pressures and high-rpm operation in demanding performance applications
• HIPPO high-pressure pin oiling feeds oil directly to the roller bearing assembly to help reduce lobe and lifter wear over time
• 0.842 in. lifter diameter with 0.750 in. bearing for application-specific valvetrain geometry and reliable roller tracking under load
• Sold as a pair for targeted replacement or custom engine build needs, with EnduraMax construction focused on extreme durability