ROCKER NUTS w/ Locks - 3/8"-24

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

PART# 923G

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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 Code1
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 use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

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