OLD PARTS SOURCE RAS-42019 Rocker Arm Shafts 331 365 V8 50 51 52 53 54

( Brand: Old Parts Source ), ( Manufacturer Part Number: RAS-42019 ), ( Type: Rocker Arm ), ( Vintage Part: Yes )

Review OLD PARTS SOURCE Rocker Arm Shafts Cadillac 331 365 V8 New fits 1949–1956

Introducing the RAS-42019 rocker arm shafts, specifically designed for Cadillac vehicles equipped with the 331 and 365 V8 engines from the model years 1949 to 1956. These shafts are an essential component of your engine's valvetrain system, responsible for transmitting rocker arm lever motion to the valves.

Each shaft is manufactured from high-quality materials, ensuring superior strength and durability. The shafts are precision-machined to exacting tolerances, ensuring a perfect fit and smooth operation. The chrome-plated finish not only adds an attractive aesthetic touch but also offers added protection against corrosion and wear.

The RAS-42019 rocker arm shafts come as a complete set, including all necessary hardware for installation. Each shaft is marked with its respective position number, making installation a straightforward process. These shafts are designed to be a direct replacement for the original equipment, requiring no modifications for installation.

These rocker arm shafts are engineered to provide reliable and consistent performance, ensuring optimal engine operation. They are suitable for use in both original and restored Cadillac vehicles, making them an excellent choice for enthusiasts and professionals alike.

In summary, the RAS-42019 rocker arm shafts are a high-quality, direct-fit replacement for Cadillac 331 and 365 V8 engines from 1949 to 1956. They are manufactured from durable materials, precision-machined for a perfect fit, and come with all necessary hardware for installation. These shafts are an investment in your vehicle's performance and reliability.

Pros and Cons of Buying RAS-42019 Rocker Arm Shafts for 1949-1956 Cadillac V8 Engines

RAS-42019 rocker arm shafts are essential components in the Cadillac 331 365 V8 engines produced between 1949 and 1956. These shafts connect the rocker arms to the pushrods, transmitting the force from the engine's pistons to the valves. If you are considering purchasing these parts, it's essential to weigh the pros and cons before making a decision.

1. OEM Quality: RAS-42019 rocker arm shafts are original equipment manufacturer (OEM) parts. This means they are designed and engineered by Cadillac, ensuring a perfect fit and optimal performance.

2. Durability: OEM parts are known for their durability and reliability. These rocker arm shafts are no exception, as they are manufactured using high-quality materials and advanced manufacturing processes.

3. Improved Engine Performance: Worn or damaged rocker arm shafts can cause valve train issues, leading to reduced engine performance. Replacing these parts with new OEM ones can restore the engine's power and efficiency.

1. Cost: OEM parts, including RAS-42019 rocker arm shafts, can be more expensive compared to aftermarket alternatives. However, the cost is justified by the superior quality and performance.

2. Availability: These parts may not be readily available at local auto parts stores, and you may need to order them online or through a Cadillac dealership.

3. Installation Complexity: Installing these rocker arm shafts can be a complex process, requiring specialized tools and expertise. This may result in additional labor costs.

In conclusion, buying RAS-42019 rocker arm shafts for your 1949-1956 Cadillac V8 engine comes with both advantages and disadvantages. While these parts can be expensive and difficult to obtain, they offer the assurance of OEM quality, durability, and improved engine performance. If you value the peace of mind that comes with using genuine Cadillac parts and are willing to invest in the long-term performance of your vehicle, purchasing these rocker arm shafts is a worthwhile investment.

If you decide to buy RAS-42019 rocker arm shafts, consider purchasing them from a trusted and reputable source, such as a Cadillac dealership or an authorized aftermarket parts supplier. This will help ensure the authenticity and quality of the parts, as well as provide you with any necessary installation support. Additionally, consider budgeting for any potential installation costs and obtaining any necessary tools or expertise before starting the installation process.

Details:

A pair of Rocker Arm Shafts. 1949-56 Cadillac with 331ci. V8 engines motor. 1949-56 Cadillac with 365 Ci.

Never used or mounted. Specifications. 2 pack both sides. The box was just opened for the photos PICTURED ARE THE ACUTAL PARTS YOUR BUYING, Perfect condition, r easy to mount comes as pictured Extremely rare this is hard find part.

These are precision machined to meet or exceed.E.M. These will fit.

part #: ras42019 price

• $45.00

specifications rockeareng:

• for makes: Cadillac
• for years: 1949-1956
• brand: Old Parts Source
• mpn: Ras-42019
• type: Rocker Arm
• vintage part: Yes

offer rockeareng:

• options: Ship-to-home
• sOld: 0
• started: November 6, 2025
• best offers: True
• quantity: 1
• availability: In Stock

shipping rockeareng:

• transit: 6-12 Days
• cost: $16.00
• carrier: USPS
• class: Expedited
• type: Fixed
• service: USPS Priority Mail

returns rockeareng:

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

general rockeareng:

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

payments rockeareng:

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

seller rockeareng:

• # reviews: 637
• city: Casselberry, Florida
• rating: 98.1%

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