GM 573347 Nos Rocker Arm 394 V-8

( Brand: Gm ), ( Manufacturer Part Number: 573347 ), ( Part Type: Arm )

Review GM New Nos Rocker Arm Oldsmobile Olds 394 V-8 fits 1959–1961

GM 573347 NOS (New Old Stock) Rocker Arm Set for Oldsmobile 394 V-8 Engines (1959-1961)

This GM 573347 NOS (New Old Stock) Rocker Arm Set is an authentic, original replacement part designed specifically for Oldsmobile 394 V-8 engines manufactured between 1959 and 1961. Each component in this set is new and unused, ensuring a perfect fit and reliable performance for your classic vehicle.

The rocker arm set includes eight rocker arms, each precision-machined to exacting specifications for optimal engine operation. The rocker arms feature durable, heat-treated steel construction for enhanced strength and durability. The arms are also equipped with resilient, high-quality rubber bushings that absorb engine vibrations and reduce wear on other components.

This set also includes eight rocker arm pivots, which are essential for securing the rocker arms to the engine. The pivots are designed to provide a smooth, efficient connection between the rocker arms and the engine, ensuring optimal engine performance and reducing the risk of misfires or other issues.

Additionally, the GM 573347 NOS Rocker Arm Set comes with eight lifter cups. These cups are responsible for sealing the contact between the lifter and the rocker arm, ensuring proper engine lubrication and preventing oil leaks. The lifter cups are made from a high-quality material that resists wear and provides excellent sealing performance.

Installing the GM 573347 NOS Rocker Arm Set is a straightforward process for experienced DIY mechanics or professional technicians. Each component is clearly labeled for easy identification, and the set includes all necessary hardware for installation. By using this NOS rocker arm set, you can restore your Oldsmobile 394 V-8 engine to its original performance and reliability.

In summary, the GM 573347 NOS Rocker Arm Set is an essential upgrade for any Oldsmobile 394 V-8 engine from the 1959 or 1961 model years. This set of authentic, new old stock components includes eight rocker arms, eight rocker arm pivots, and eight lifter cups, ensuring a complete and accurate restoration of your classic vehicle's engine. With its durable construction and reliable performance, this rocker arm set is an investment in the long-term health and enjoyment of your Oldsmobile.

Buying a GM 573347 NOS (New Old Stock) rocker arm for an Oldsmobile Olds 394 V-8 engine from the years 1959 and 1961 involves considering several factors to help make an informed decision. Here are some pros and cons to help you weigh the options.

1. Authenticity: A new old stock part is original and has not been used, ensuring that it will be a perfect fit for your Oldsmobile. It's a great option for those who value maintaining the originality of their classic car.

2. Quality: GM's reputation for manufacturing high-quality parts is well-known. A new old stock rocker arm will likely be in excellent condition and free from any potential wear or defects.

3. Durability: The durability of a new old stock rocker arm is often superior to that of used or rebuilt parts. It's an investment in the longevity of your engine.

4. Availability: New old stock parts like the GM 573347 are often difficult to find, especially for older models. Purchasing a new one ensures that you have a reliable source for replacement parts.

1. Cost: New old stock parts can be more expensive than used or rebuilt parts due to their scarcity and originality. You'll need to weigh the cost against the benefits.

2. Lead time: Since new old stock parts are not readily available, it may take some time to receive your order. This could mean being without a crucial engine component for an extended period.

3. Limited availability: New old stock parts are only available for certain models and years. If your Oldsmobile has a more obscure engine, you may not be able to find the new old stock part you need.

In conclusion, purchasing a GM 573347 NOS rocker arm for your Oldsmobile Olds 394 V-8 engine from the years 1959 and 1961 has its advantages and disadvantages. The authenticity, quality, and durability of a new old stock part can be significant benefits, but the cost, lead time, and limited availability may be drawbacks. Ultimately, the decision comes down to your preferences, budget, and the importance you place on maintaining the originality and longevity of your classic car's engine. If you prioritize these factors, a new old stock rocker arm may be the best choice for you.

Details:

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 rocker arm, part number 573347. See pics for condition.

part #: 573347 prices

• $27.00-$49.50

specifications rockeareng:

• for makes: Oldsmobile, Olds
• for years: 1959-1961
• brand: Gm
• mpn: 573347
• part type: Arm

seller rockeareng:

• rating: 100.0%
• # reviews: 30404
• city: Sheboygan Falls, Wisconsin

offer rockeareng:

• options: Ship-to-home
• best offers: True
• availability: In Stock
• sold: 0
• quantity: 1
• started: June 26, 2025

shipping rockeareng:

• type: Calculated
• cost: $0.00
• class: Standard
• carrier: USPS
• transit: 4-9 Days
• service: USPS Ground Advantage

payments rockeareng:

• other
• wallet: Google-pay
• credit card: Mastercard

returns rockeareng:

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

general rockeareng:

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

Gm 573347 Is Similar To:

• 013122222731 Gm Original Rocker Arm Lock Nuts Chevy Bb (32.5% similar) Ten new Gm big block rocker arm locking nuts...(May 2nd, 2018)
• 0273641 Prw Billet Rocker Arm Pedestal Stands Gm (39.3% similar) Pre billet rocker arm pedestal stands Gm LS3 L92...(October 3rd, 2018)
• 07-13702-16 Engine Pro Chevy Gm Ls Rocker Arm Trunnion Trunion Bronze (27.5% similar) The bushing design provides superior lubrication to grunion while also providing maximum load capability. Or replacement needle bearings, eliminating the possibility of debris from a bearing failure that can cause severe engine damage. The greater surface of our bushed grunion will support 300 times...(October 29th, 2018)
• 1-261-023 Speedmaster Chevy Gm Shaft Ratio Dna Aluminum Roller Rocker Arms (23.8% similar) Chevy Gm LS1 shaft 8 ratio DNA aluminum roller rocker arms set compatible with speed master instructions...(August 22nd, 2018)
• 10089648 Gm Oem-rocker Arm (27.4% similar) ...(October 27th, 2017)
• 10112680 Gm General Motors Rocker Arm Chevy Gmc Blazer Dealercloseout (34.8% similar) 4l 1/2 ton, 3/4 cab chassis 135. 5, 3500 cab chassis, crew cab, regular long box, standard BOX1988-1990 Chevrolet K35 8 Cl 9, 3500 extended cab, regular CAB1985-1986 Chevrolet C30 8 Cl photos are of the actual parts or sealed packaging containing offered for sale. 9, crew cab, regular cab long box, ...(April 2nd, 2018)
• 10121095 Gm Rocker Arm 82 (31.9% similar) A new part does not mean that it is identical to original or in perfect condition. Many different variables go into vehicle applications engine size, transmission, model, brake system, wheel drive, etc. Offering a new Gm rocker arm, part, group. 333PHG7ZB644MLRA1. Inc 10121095G0. It may have factory...(September 27th, 2017)
• 10141401 General Motors Nos Gm Rocker Panel Rh Chevrolet Camaro Pontiac (30% similar) Still retains most of its original galvanized finish. This is a genuine Gm nos rocker panel that has some minor spots of surface rust. Fits Camry and fire bird. This is for the Rh, passenger side...(July 27th, 2018)
• 10166367 Gm Oem Rocker Arm (31.6% similar) Genuine Gm rocker studs set of 12, part number it has a 10 x 0MM for nut. 5MM thread and 10 shaft with 8 x...(October 22nd, 2017)
• 10172839 Chevrolet Gmc Gm Piston Arm Rod One Unit Mercruiser (23.3% similar) If they are not, the same then buyer needs to specify us which is indeed correct. If you would like expedited shipping please directly for rates...(February 12th, 2019)
• 1192965 1192964 Gm Four Buick Litre Cubic Inch Rocker Arms (25.2% similar) No original box but parts are in great shape as you see. And three have 1b 4b 7b 6B. They have these part numbers on them. Rocker arms for the Buick look at pics and judge yourself. 2 litre engine. Rare nos parts here. Here are 4 come as you see them...(March 17th, 2019)