PROFORM 66906C Roller Tip Rocker Arms, 1.50 Ratio, 3/8-Inch Stud Mount, Small Block Chevy

PROFORM Part Number 66906C roller tip rocker arms are designed for Small Block Chevy applications requiring dependable valvetrain performance and accurate rocker geometry. This complete set includes 16 steel rocker arms with a 1.50:1 ratio and 3/8-inch stud-mount configuration, making it a practical choice for engine builds, repairs, and performance upgrades.
The roller tip design helps reduce friction at the valve stem while supporting smooth rocker arm movement during engine operation. Manufactured from steel with a natural finish, these rocker arms provide durable service for street, restoration, and performance-oriented Small Block Chevy applications. The 1.50 ratio maintains a familiar factory-style configuration while helping deliver consistent valve actuation.
Each PROFORM 66906C rocker arm is designed for compatibility with engines using 3/8-inch rocker studs and appropriate Small Block Chevy valvetrain components. Verify cylinder head, pushrod, stud, and valve cover clearance before installation to ensure proper fitment. Professional installation and correct adjustment are recommended for reliable operation and long component life.
Feature: Brand: PROFORM
Feature: Part Number: 66906C
Feature: Application: Small Block Chevy
Feature: Quantity: Set of 16 rocker arms
Feature: Rocker Arm Ratio: 1.50:1
Feature: Mounting Style: 3/8-inch stud mount
Feature: Tip Style: Roller tip
Feature: Material: Steel
Feature: Finish: Natural

Features:

• Brand: PROFORM

• Part Number: 66906C

• Application: Small Block Chevy

• Quantity: Set of 16 rocker arms

• Rocker Arm Ratio: 1.50:1

• Mounting Style: 3/8-inch stud mount

• Tip Style: Roller tip

• Material: Steel

• Finish: Natural