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COMP Cams 4602-1 Magnum Polylock Rocker Arm Adjusting Nut for Stud - 3/8

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

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

Manufacturer

Picture for manufacturer COMP Cams

Part Number

4602-1
4 reviews
Sale Price

$11.95

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 4602-1 Magnum Polylock is a precision-engineered rocker arm adjusting nut designed for 3/8" rocker studs. This high-performance nut features an integrated polymer locking collar that ensures secure adjustment and prevents loosening under extreme engine vibration and thermal cycling.

Key Features:

  • Fits 3/8" rocker arm studs for wide compatibility with popular engine platforms
  • Polylock design uses a polymer insert that expands when tightened to lock the adjustment in place
  • Eliminates the need for separate lock nuts or check nuts
  • Maintains precise valve lash settings during high-RPM operation
  • Manufactured from high-strength steel with corrosion-resistant finish
  • Simple installation - adjusts like a standard nut but locks positively without jam nut

The Magnum Polylock nut is ideal for performance and racing applications where maintaining accurate valve train geometry is critical. The self-locking polymer collar provides reliable retention without the complexity of dual-nut systems, making valve lash adjustments faster and more secure.

Products specifications

Adjusting Nut Height

1.3

Rocker Arm Adjusting Nut Series

Magnum

AMAZON ASIN

B000P59ASS

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

3/8

Simple and easy purchase

Very satisfied! My intake shipped on Friday and I received it on Tuesday. Not only super fast shipping, but a great deal to boot!

I ordered a hitch off of this site for Christmas, I have never heard of it nor did I know how they were, but they are great! Got my package in I'd say 4 days, very fast and it was exactly what I wanted! Only down fall was they charged me 3 times and I was short 150$ for a few days. I got my money back and I would definitely order again.

Very good customer service asked about a lot of different springs and parts for my Mazdaspeed 3.

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