Crower 66410-2 Features:

Crower 66410-2 retro-fit hydraulic roller lifters for SB CHEVY 262-400 and 348-427 applications; -2 suffix indicates 1 pair with 2 lifters connected by a tie-bar. Standard 0.842 in. outside diameter with a +0.300 in. tall-body design for compatibility with early standard blocks and late-model raised lifter bore blocks. Street Series tie-bar lifters combine roller-lifter performance with hydraulic-lifter low-maintenance operation for dependable street and performance engine builds. Completely redesigned body and bearing assembly allows retrofit installation in earlier-style blocks originally equipped with flat-tappet camshafts.

Retro-fit Hydraulic Rolle Sb Chevy 262-400, 348-427, 0.842 In. Features:

• 0.842 in. OD tie-bar lifter pair for SB CHEVY 262-400 and 348-427 blocks, precise retro-fit fitment for compatible early and big-block applications
• +.300 in. tall-body design for early standard and raised lifter-bore blocks, expanding compatibility across mixed-production engine block configurations
• hydraulic roller performance with low-maintenance street-series operation and reliability, combining roller efficiency with hydraulic valvetrain convenience
• retro-fit design for flat-tappet-origin blocks with redesigned body and bearing assembly, enabling seamless conversion without flat-tappet lifter limitations
• single connected pair, 2 lifters per set with tie-bar stabilization for consistent roller lifter alignment during street-performance valvetrain operation