Crower 66490X903-2 Features:

Crower 66490X903-2 raised-seat roller lifters for Small Block Chevy V8 1955-up 262-400ci applications Pair of lifters with .903 in. OD and .812 in. bearing, built for tall lifter bore engine combinations Features a +.300 in. higher pushrod seat than standard Chevy rollers to improve pushrod geometry Raised-seat design eliminates the need to grind the lifter bore for added pushrod clearance

Roller Lifters Raised Sea SBC .903 In. Od, .812 Features:

• Raised-seat design with +.300 in. pushrod seat height for improved valvetrain geometry and added pushrod clearance in tall lifter bores
• .903 in. OD roller lifter body sized for SMALL BLOCK CHEVY V8 262-400 ci applications, 1955-up fitment range
• .812 in. bearing supports smooth roller operation under high-load valvetrain conditions in performance engine builds
• Eliminates lifter-bore grinding for pushrod clearance, helping simplify SBC valvetrain setup and reduce block modification
• Pair of roller lifters for SMALL BLOCK CHEVY tall lifter-bore combinations requiring raised-seat pushrod positioning