Overview

ProForm aluminium roller rocker arm set for compatible small-block Ford engines, with 1.6:1 rocker ratio and 3/8-inch studs. Includes 16 roller rockers and poly locks. Check cylinder head, stud size, spring clearance and valvetrain geometry. Part number: 66911C-FMQX.

Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. 16 extruded aluminum roller rockers and 16 poly locks. Sold as one set.
Product Details:

• Engine Roller Rocker Arm Set
• 1.6 Ratio With 3/8 Inch Stud
• Extruded Aluminum Type with Roller Needle Bearing Trunions
• Fits Small Block Ford Engines
• Blue Anodized Finish
• Use With A Max Spring Diameter of 1.500 Inches
• Poly Locks Included
• Clamshell Packaged For Retail Display
• Sold As One Set

Additional features and specifications

• Aluminum with Full Cage Bearing Trunnions
• Blue Anodized Finish with Laser-Etched "P" Emblem

Product documentation

• PROFORM manufacturer product information – 66911C