COMP Cams 1834-1 Ultra Pro Magnum XD Roller Rocker Arm Ratio Ford Small Block - 1.7

The COMP Cams 1834-1 Ultra Pro Magnum XD roller rocker arm delivers professional-grade performance for Ford small block engines. Engineered with a 1.7:1 rocker ratio, this rocker arm increases valve lift compared to stock components, improving airflow and power output across the RPM range.

Key Features:

• 1.7:1 rocker ratio for increased valve lift and performance
• Precision needle bearing design reduces friction and wear
• Extruded aluminum body with hardened steel roller tip
• Designed for 7/16" rocker studs
• Full roller design for reduced valvetrain friction
• Self-aligning feature compensates for manufacturing tolerances
• CNC-machined for consistent tolerances and quality

Application:

Compatible with Ford 289, 302, and 351W small block engines equipped with 7/16" rocker studs. Ideal for street performance, street/strip, and racing applications where increased valve lift and reduced friction are desired.

Technical Specifications:

• Rocker Ratio: 1.7:1
• Stud Size: 7/16"
• Material: Extruded aluminum body with hardened steel components
• Bearing Type: Needle bearing roller fulcrum and roller tip

The Ultra Pro Magnum XD series represents COMP Cams' commitment to precision valvetrain components. The full roller design minimizes friction at both the valve tip and fulcrum point, reducing wear and freeing up horsepower. The self-aligning feature ensures proper valve geometry even with typical manufacturing variations in cylinder heads and valvetrain components.