Mr. Gasket Rocker Arm Nuts with Locks

Fits Small Block Chevy 283-400, Pontiac 326-455, Ford Small Block 289/302/351W using Aluminum Rocker Arms.

PART# 923G

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$66.23   Suggested Retail
$53.65   Holleydays Price
Estimated shipping date: 12/27/2019
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Designed to keep the rocker arms positively locked for precise and critical valvetrain adjustments. Manufactured from quality grade steel, then heat-treated for extra strength and plated with a durable finish. Kits include 16 rocker arm nuts with socket head set screws and one hex key wrench. Fits Chevrolet 283-400 SB, Pontiac V8 & Ford 289-302-351 (ex 351C).


  • (16) Rocker Arm Nuts w/ Locks 3/8"-24 Threads
  • Shank O.D. .540"
  • Includes Locks and Hex Wrench


BrandMr. Gasket
Emission Code5
EngineChevrolet Small Block Gen I
Ford Small Block Windsor
Pontiac V8
Product TypeEngine Dress Up Kits
Quantity Per Pkg.16
Part Number923G


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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      *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.

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