Roller Rocker Arms 1.7 Ratio 7/16" Stud Standard for Chevy BBC 396 402 427 454

Product Overview

This aftermarket replacement roller rocker arm set is intended for Chevrolet BBC 396, 402, 427, and 454 applications and is built to the standard 1.7 ratio with a 7/16" stud. Roller rocker arms transfer camshaft lift to the valves while reducing friction at the pivot point compared with a standard rocker arm. The set offers a practical option when servicing or replacing the corresponding valvetrain components on the listed big block applications.

Key Features & Performance

• Roller rocker arms are designed to translate camshaft motion into valve actuation while reducing friction at the trunnion.
• Standard 1.7 ratio configuration matches the ratio called for in the title for the listed Chevrolet BBC applications.
• 7/16" stud sizing is specified for the listed applications and should be confirmed against the existing hardware before purchase.
• Intended for Chevrolet BBC 396, 402, 427, and 454 applications as identified in the title.
• Suits valvetrain service or replacement work where the original rocker arms are worn or damaged.

Fitment & Compatibility

• for Chevrolet BBC 396 applications
• for Chevrolet BBC 402 applications
• for Chevrolet BBC 427 applications
• for Chevrolet BBC 454 applications

Common Uses

• Replacing worn, damaged, or malfunctioning rocker arms in a big block Chevrolet valvetrain.
• Valvetrain maintenance and servicing of the listed engine applications.
• Restoring normal valve actuation after the original rocker arms have failed.

Technical Specifications

• Product Type: Roller Rocker Arms
• Model Application(s): Chevrolet BBC 396, 402, 427, 454
• Rocker Ratio: 1.7
• Stud Size: 7/16"
• Configuration: Standard

Frequently Asked Questions

Q: What do roller rocker arms do? A: They transfer camshaft lift to the valves and use a roller bearing at the pivot to reduce friction compared with a standard rocker arm.

Q: How do I verify fitment? A: Match the 1.7 ratio and 7/16" stud size to your existing setup, and confirm the complete engine designation such as BBC 396, 402, 427, or 454 before ordering.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.