GM Nos Rocker Arm Shaft V-8

( Brand: Gm ), ( Manufacturer Part Number: 2B566376 ), ( Part Type: Arm Shaft )

Review GM New Nos Rocker Arm Shaft 2b 566376 Oldsmobile Olds V-8 fits 303 1949–1951

Introducing the GM 2B566376 NOS (New Old Stock) Rocker Arm Shaft for Oldsmobile OLDs 303 V-8 engines from the years 1949, 1950, and 1951. This authentic piece of automotive history is a must-have for collectors and restoration enthusiasts who are dedicated to maintaining the originality and integrity of their classic Oldsmobile vehicles.

The rocker arm shaft is a critical component of the engine's valvetrain system, responsible for transmitting the force from the rocker arms to the lifters, which in turn control the intake and exhaust valves. This particular GM part number, 2B566376, is a direct fit for Oldsmobile OLDs 303 V-8 engines produced during the designated model years.

Measuring approximately 14 inches in length, this rocker arm shaft is manufactured from high-quality steel, ensuring both durability and reliability. Its smooth finish and precise tolerances guarantee a perfect fit and easy installation. Additionally, the NOS (New Old Stock) designation means that this part has never been used before, ensuring that it will not introduce any unwanted wear or contaminants into your engine.

The GM 2B566376 NOS Rocker Arm Shaft is an essential addition to any Oldsmobile restoration project, allowing enthusiasts to maintain the authenticity and performance of their classic vehicles. Its availability as a new old stock part makes it an even more valuable find for collectors and restorers, as it is becoming increasingly challenging to locate original, unused components for these vintage engines.

In summary, this GM 2B566376 NOS Rocker Arm Shaft for Oldsmobile OLDs 303 V-8 engines from the years 1949, 1950, and 1951 is an essential component for any collector or restorer dedicated to maintaining the originality and performance of their classic vehicle. Manufactured from high-quality steel and featuring a smooth finish and precise tolerances, this rocker arm shaft offers both durability and reliability, making it an invaluable addition to any restoration project.

Buying a GM 2B566376 NOS Rocker Arm Shaft for Oldsmobile 303 V-8 (1949-1951): Pros, Cons, and Conclusion

The GM 2B566376 NOS (New Old Stock) Rocker Arm Shaft is a critical replacement part for Oldsmobile 303 V-8 engines used in vehicles from 1949 to 1951. In this analysis, we will discuss the advantages and disadvantages of purchasing this part to help you make an informed decision.

1. Authenticity and Originality: NOS parts are original and have not been used or refurbished. They maintain the original appearance and performance of your classic Oldsmobile.

2. Reliability: Since the part is new and unused, it ensures reliable performance compared to rebuilt or used parts.

3. Availability: NOS parts are available from various sources, including salvage yards, online marketplaces, and specialized stores.

1. Cost: NOS parts are typically more expensive than rebuilt or used parts due to their scarcity and originality.

2. Limited Availability: Not all NOS parts are available for every make and model, especially for older vehicles like the Oldsmobile 303 V-8.

3. Shipping and Handling: NOS parts are often sourced from remote locations, which may result in higher shipping and handling costs.

The decision to buy a GM 2B566376 NOS Rocker Arm Shaft for your Oldsmobile 303 V-8 depends on your priorities and budget. If originality and reliability are your top concerns, and you have the financial resources, then investing in a NOS part is a good choice. However, if you're looking for a more cost-effective solution, you might consider rebuilt or used parts.

Before making a decision, research various sources for the part, including online marketplaces, specialized stores, and local salvage yards. Compare the prices and availability of NOS, rebuilt, and used parts. Consider the importance of originality and reliability in your restoration project and make an informed decision based on your priorities and budget.

Details:

See pics for condition. Part is dusty/dirty and shows some patina from handling sitting on the shelf. Please verify part number and pics match your application. New NOS GM shaft, part number 566376.

part #: 2b566376 prices

• $22.50-$149.00

specifications rockeareng:

• for models: 303
• for makes: Oldsmobile, Olds
• for years: 1949-1951
• brand: Gm
• mpn: 2b566376
• part type: Arm Shaft

shipping rockeareng:

• service: USPS Ground Advantage
• class: Standard
• transit: 4-8 Days
• carrier: USPS
• type: Calculated
• cost: $0.00

offer rockeareng:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• started: November 2, 2025
• sold: 0
• quantity: 1

seller rockeareng:

• city: Sheboygan Falls, Wisconsin
• rating: 100.0%
• # reviews: 31819

payments rockeareng:

• credit card: Diners-club
• other
• wallet: Apple-pay

general rockeareng:

• condition: New other see details
• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts

returns rockeareng:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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