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COMP Cams 4631-1 Polylock Rocker Arm Adjusting Nut 1.125" Tall 3/8" Stud

Manufacturer

Picture for manufacturer COMP Cams

Part Number

4631-1
11 reviews
Sale Price

$9.95

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 4631-1 Polylock rocker arm adjusting nut is specifically designed for use with high energy rocker arms featuring 3/8" studs. This precision-engineered nut measures 1.125" in height, providing the additional clearance needed for certain high-performance valve train configurations.

Key Features:

  • Polylock design ensures secure adjustment and prevents loosening under high RPM operation
  • 1.125" tall body accommodates high-lift camshafts and aggressive rocker arm geometries
  • 3/8" stud thread compatibility fits most popular domestic V8 applications
  • Manufactured to COMP Cams exacting quality standards for reliable valve train performance
  • Precision machined for accurate lash adjustment and consistent valve timing

This polylock nut is an essential component for properly setting and maintaining valve lash in performance engine builds. The polylock system uses a polymer insert that locks the adjustment in place without requiring a jam nut, simplifying valve train setup while ensuring stability during engine operation. Ideal for racing applications, street performance builds, and any engine using COMP Cams high energy rocker arms with 3/8" rocker studs.

Products specifications

Adjusting Nut Height

High Energy

Rocker Arm Adjusting Nut Series

High Energy

AMAZON ASIN

B0066SSH2S

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

Pretty easy

Good

Good prices.

great selection, Excellent Pricing , great shiiping rates

Excellent pricing and quick shipping.

First time on this site will give feedback after receiving product

Good product, great price, will do business again.

Only place that stocked the full floor mats that I wanted for my Cruze - AND, best price. Quick shipping too. A+

Excellent price on kirkey seats! I will be buying from them again. Thanks for the prompt service

I really like how prompt the order went through and the quality of the part im getting

Price on shipping was good

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