Crower 66494X903E-2 Features:

Crower EnduraMax mechanical roller lifter pair for Pontiac engines with a .903 in. OD, sized for a .904 in. lifter bore. Raised-seat design helps fit Pontiac valvetrain geometry in demanding high-performance mechanical roller applications. NBO needleless bearing option replaces traditional needle bearings for improved stability under high spring pressures and extreme RPM. HIPPO high-pressure pin oiling channels oil directly to the roller bearing assembly to support durability and consistent lubrication.

Enduramax Roller Lifters Raised-seat Pontiac .903 In. Od For Features:

• Raised-seat mechanical roller lifters for Pontiac engines with 0.903 in. OD sizing for 0.904 in. lifter bores and precise valvetrain fitment
• Needleless-bearing design for severe valve spring pressures, reduced bearing failure risk, and improved high-rpm durability in demanding builds
• High-pressure pin oiling directs oil to the roller bearing assembly for added lubrication, cooler operation, and longer service life
• Premium-series construction supports maximum reliability, valvetrain stability, and consistent performance under extreme racing and high-load conditions
• Pair of EnduraMax lifters engineered for high-performance Pontiac applications requiring raised-seat geometry, robust roller support, and durable oil-fed operation