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Mr. Gasket Rocker Arm Nuts with Locks 923G

Mr. Gasket Rocker Arm Nuts with Locks 923G
$133.99 ea
NEWBackordered until 12/15/2024
Model: 4012430
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
Designed to keep the rocker arms positively locked for precise and critical valve train 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.
Features:
  • (16) Rocker Arm Nuts w/ Locks 3/8"-24 Threads
  • Shank O.D. .540"
  • Includes Locks and Hex Wrench

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Camaro 1967 5.3L / 327 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1968 5.4L / 327 / V8
5.7L / 350 / V8
5.3L / 327 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1969 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1970 5.0L / 307 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1971 5.0L / 307 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1972 5.0L / 307 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1973 5.0L / 307 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1974 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1975 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1976 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1977 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1978 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1979 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1980 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1981 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1982 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1984 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1985 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1986 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1987 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1988 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1989 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1990 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1991 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Chevrolet Camaro 1992 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1968 6.6L / 400 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1969 6.6L / 400 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1970 6.6L / 400 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1971 6.6L / 400 / V8
5.7L / 350 / V8
7.5L / 455 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1972 6.6L / 400 / V8
5.7L / 350 / V8
7.5L / 455 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1973 6.6L / 400 / V8
5.7L / 350 / V8
7.5L / 455 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1974 6.6L / 400 / V8
5.7L / 350 / V8
7.5L / 455 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1975 7.5L / 455 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1976 5.7L / 350 / V8
7.5L / 455 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1977 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1980 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1981 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1984 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1985 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1986 5.0L / 305 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1987 5.0L / 305 / V8
5.7L / 350 / V8
ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1988 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1989 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1990 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1991 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;
Pontiac Firebird 1992 5.7L / 350 / V8 ULTRA SEAL; SURE-LOCK ROCKER ARM NUTS; 3/8 IN. STUD; FOR ALUMINUM ROCKER ARMS; 16 NUTS W/SOCKET HEAD SET SCREWS AND HEX KEY WRENCH; 0.540 IN. OD SHANK;

Specifications:

Emission Code 5
Engine Chevrolet Small Block Gen I, Ford Small Block Windsor, Pontiac V8
Finish Zinc
Material Steel
Part Type Engine Rocker Arm Nut
Product Type Engine Fasteners
Quantity Per Pkg. 16
Thread 3/8"-24
Warranty Limited 90 Day
Weight 0.7500

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Mr. Gasket Rocker Arm Nuts with Locks 923G:

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