THOMPSON VS304 Nos Valve Springs

( Brand: Thompson ), ( Manufacturer Part Number: VS304 ), ( Part Type: Valve Spring ), ( Material: Steel ), ( Vintage Part: Yes ), ( Country Of Origin: Canada ), ( Performance Part: No )

Review THOMPSON Nos Lot Of Products Valve Springs Dodge Plymouth fits 1933–1940

The Thompson VS304 NOS (New Old Stock) valve springs are an essential upgrade for any 1933-1940 Dodge or Plymouth automobile looking to enhance its performance or restore its original power. These valve springs are manufactured by Thompson Performance Products, a trusted name in the automotive industry known for producing high-quality aftermarket parts.

The Thompson VS304 NOS valve springs are designed to provide improved reliability, durability, and performance compared to the original valve springs that came with your classic vehicle. These springs are made using a proprietary alloy material that delivers increased force and resilience, allowing for more efficient combustion and improved engine response.

The VS304 NOS valve springs are specifically engineered for the flathead engines used in these Dodge and Plymouth models. They feature a dual-spring design, which helps to maintain valve control under high RPM and heavy load conditions. Each spring is precision-manufactured to ensure consistent dimensions and tolerances, ensuring a perfect fit and optimal performance.

Installing the Thompson VS304 NOS valve springs is a straightforward process, making them an excellent choice for both DIY enthusiasts and professional mechanics. The springs come complete with new retainers, keeping the installation process hassle-free. Additionally, the use of NOS (New Old Stock) springs ensures that you are receiving genuine, unaltered parts that have been stored properly since their original manufacture, maintaining their original quality and performance.

By upgrading to the Thompson VS304 NOS valve springs, you'll notice an improvement in your engine's power and responsiveness, making your classic Dodge or Plymouth a true performer once again. Whether you're restoring your vehicle to its former glory or looking to enhance its performance for modern driving conditions, these high-quality valve springs are an essential upgrade that you can trust.

Thompson VS304 NOS (New Old Stock) valve springs for 1933-1940 Dodge and Plymouth vehicles offer several advantages and disadvantages for automobile restoration enthusiasts. Here's a detailed analysis of both:

1. Original Equipment: These valve springs are NOS, meaning they are original equipment manufactured during the period and have not been used or reconditioned. This makes them ideal for authentic restoration projects.

2. Consistency: NOS parts ensure consistency in performance and appearance, which is essential in maintaining the originality and value of a classic vehicle.

3. Better Performance: NOS valve springs may offer better performance compared to rebuilt or aftermarket alternatives. This can lead to improved engine power and overall vehicle drivability.

1. Cost: NOS parts, like Thompson VS304 valve springs, tend to be more expensive compared to rebuilt or aftermarket alternatives. This can be a significant investment for some restoration projects.

2. Availability: NOS parts are not always readily available, which can make the search process time-consuming and frustrating. In some cases, collectors may need to purchase these parts from various sources, increasing the overall cost.

Thompson VS304 NOS valve springs can be an excellent investment for those seeking authenticity and improved performance in their 1933-1940 Dodge and Plymouth restoration projects. However, their high cost and limited availability may be a deterrent for some enthusiasts. Ultimately, the decision to purchase these valve springs should be based on individual priorities, budget, and the importance of authenticity and performance in the restoration process.

For those who prioritize authenticity and performance above all else and have the budget to accommodate it, Thompson VS304 NOS valve springs are an excellent choice. For those who are cost-conscious or prefer aftermarket alternatives, there are several reputable aftermarket manufacturers that offer high-quality valve springs that may be a more affordable option. Ultimately, the decision depends on the individual's priorities and budget for their restoration project.

Details:

Please see pictures. New lot of 11. Storage 67us.

part #: vs304 prices

• $49.80-$57.90

specifications voomvalve:

• for makes: Dodge, Plymouth
• for years: 1933-1940
• brand: Thompson
• mpn: Vs304
• part type: Valve Spring
• material: Steel
• vintage part: Yes
• country of origin: Canada
• performance part: No

offer voomvalve:

• sold: 0
• best offers: True
• availability: In Stock
• started: February 22, 2026
• quantity: 1
• options: Ship-to-home

seller voomvalve:

• city: Falconer, New York
• # reviews: 4433
• rating: 99.9%

shipping voomvalve:

• class: Standard
• transit: 4-9 Days
• type: Fixed
• carrier: USPS
• service: USPS Ground Advantage
• cost: $10.00

returns voomvalve:

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

payments voomvalve:

• wallet: Paypal
• credit card: Mastercard
• other

general voomvalve:

• condition: New
• Engines Engine Parts > Valvetrain Components > Valves

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