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

Roller Rocker Arms for Chevy BBC

These roller rocker arms are a direct-fit valvetrain component for Chevy big block engines, using a 1.7 ratio and 7/16" stud mount to transfer camshaft lift to the valves with reduced friction.

Overview

These roller rocker arms are designed for Chevy big block 396, 402, 427 and 454 engines, delivering a 1.7 ratio and 7/16" stud fitment for builders refreshing or reinforcing a valvetrain. The roller tip design reduces friction and side loading on the valve stem compared with a stock stamped rocker. They suit engine builders and enthusiasts running a big block Chevy who want dependable, repeatable valve actuation.

Built For Performance

• 1.7 rocker ratio matched to big block Chevy valvetrain geometry
• Roller tip design reduces friction and guide wear
• 7/16" stud mount for a positive, stable pivot
• Standard configuration suits stock and mild performance builds
• Machined for consistent valve lift across the set

Fits These Machines

• for Chevy 396 big block
• for Chevy 402 big block
• for Chevy 427 big block
• for Chevy 454 big block

On-The-Job Use

• Valvetrain refreshes during a top-end rebuild
• Mild performance builds on big block Chevy engines
• Replacing worn or noisy stock rocker arms
• Street and strip engines running a hydraulic or solid cam

Specs At A Glance

Good To Know

Q: Will these fit my 454 with stock heads? A: They are listed for Chevy big block 396 through 454 applications using a 7/16" stud, but head casting and stud conversion should be checked before ordering. Q: Do I need to check pushrod length after installing? A: Any change in rocker geometry can affect valvetrain alignment, so verify pushrod length and lash during assembly.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.