COMP Cams 854-2 Retro-Fit Hydraulic Roller Lifters for Chevy Big Block 396-454

The COMP Cams 854-2 Retro-Fit Hydraulic Roller Lifters are engineered to upgrade early Chevrolet Big Block engines (396-454 cubic inch) to modern roller technology without requiring a complete engine teardown. This pair of lifters allows you to convert flat tappet camshaft applications to roller cam performance in blocks originally designed for flat tappet lifters.

Key Features:

• Retro-fit design works with factory lifter bores—no machining required
• Hydraulic roller construction reduces friction and wear for improved performance and longevity
• Compatible with Chevrolet Big Block 396, 402, 427, and 454 engines
• Sold as a pair—order quantity needed for complete engine build
• Precision-manufactured to COMP Cams exacting quality standards
• Allows use of aggressive roller camshaft profiles for increased power

These retro-fit lifters are ideal for engine builders looking to maximize performance in vintage big block Chevrolet applications without the expense of aftermarket lifter bore bushings or complete block modifications. The roller design significantly reduces valvetrain friction compared to flat tappet lifters while providing enhanced durability for high-performance and racing applications.