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COMP Cams 4603-16 Magnum Polylock Rocker Arm Adjusting Nuts for Stud - 7/16

Part of: COMP Cams Magnum Polylock Rocker Arm Adjusting Nuts for Stud

Other options in this family: COMP Cams 4602-16 COMP Cams 4602-1 COMP Cams 4603-1

Manufacturer

Picture for manufacturer COMP Cams

Part Number

4603-16
8 reviews
Sale Price

$69.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 4603-16 Magnum Polylock rocker arm adjusting nut set provides reliable valve lash adjustment and locking capability for performance engines with 7/16" rocker studs. These precision-engineered adjusting nuts feature an integrated polylock design that maintains proper valve adjustment even under extreme racing conditions and high RPM operation.

Key Features:

  • Designed for 7/16" diameter rocker studs
  • Polylock design prevents loosening from vibration and thermal cycling
  • Precision-machined threads ensure accurate valve lash adjustment
  • High-strength construction withstands high spring pressures
  • Suitable for street performance and racing applications
  • Set includes multiple adjusting nuts for complete valvetrain setup

These Magnum Polylock adjusting nuts are essential components for maintaining consistent valve timing and preventing premature valvetrain wear. The polylock feature eliminates the need for separate jam nuts while providing superior locking performance compared to conventional designs. Ideal for use with stud-mounted rocker arms in pushrod engine builds.

Products specifications

Adjusting Nut Height

1.3

Rocker Arm Adjusting Nut Series

Magnum

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

Yes

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exemption Reason

No impact on pollution output of vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Stud Diameter

7/16

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