MOPAR P4120237 Nos Performance Shaft Camshaft Rb Kit .509 292 383

( Manufacturer Part Number: P4120237 ), ( Type: Camshaft ), ( Performance Part: Yes )

Review MOPAR Nos Performance Purple Shaft .509 292 Camshaft Kit Rb 383 fits 440

The Mopar P4120237 NOS Performance Shaft 509 292 Camshaft Kit RB 383 440 is an essential upgrade for any enthusiast looking to enhance the performance of their Chrysler, Dodge, or Plymouth engine with a 383 or 440 cubic inch RB (Rambler Block) powerplant. This camshaft kit, manufactured by NOS (National Oil Seal), is specifically designed to deliver improved power, torque, and throttle response.

At the heart of this kit is the 509 292 camshaft. This high-performance camshaft features a grind that is ideal for street performance and racing applications. With a duration at 0.050 inches of 292 degrees for the intake and 292 degrees for the exhaust, this camshaft provides ample lift to ensure efficient combustion and optimal engine breathing. The intake lift is 0.477 inches, while the exhaust lift is 0.454 inches. These measurements result in a lively engine response, making this kit suitable for high-performance applications.

The NOS Performance Shaft 509 292 Camshaft Kit RB 383 440 also includes a new performance shaft. This high-quality shaft is precision-machined to ensure a perfect fit and optimal balance. It is designed to handle the increased power output of the upgraded engine, making it a critical component of this performance upgrade.

The kit is compatible with Chrysler, Dodge, and Plymouth engines with 383 or 440 cubic inch RB (Rambler Block) powerplants. It is essential to note that this kit may require additional modifications, such as a performance ignition system, high-performance cylinder heads, and a high-performance intake manifold, to fully realize its potential.

In conclusion, the Mopar P4120237 NOS Performance Shaft 509 292 Camshaft Kit RB 383 440 is an excellent choice for any muscle car enthusiast looking to boost the performance of their 383 or 440 cubic inch RB engine. With its high-performance camshaft and new performance shaft, this kit delivers increased power, torque, and throttle response, making it an essential upgrade for any serious muscle car builder or racer.

Mopar P4120237 NOS Performance Shaft 509 292 Camshaft Kit RB 383 440: Pros, Cons, and Conclusion

The Mopar P4120237 NOS Performance Shaft 509 292 Camshaft Kit RB 383 440 is a popular upgrade for Chrysler engines, particularly those with RB 383 and 440 cubic inch blocks. In this analysis, we will explore the key advantages and disadvantages of investing in this camshaft kit.

1. Enhanced Performance: The primary reason for purchasing this camshaft kit is to improve the performance of your engine. The 292 hydraulic roller camshaft and matching performance valve train components offer improved valve lift, duration, and timing, ultimately resulting in increased horsepower and torque.

2. Durability: The NOS camshaft kit is designed to withstand the rigors of high-performance applications. The 509-series shafts are forged, ensuring strength and longevity. The hydraulic roller lifters provide consistent valve train operation and help reduce camshaft wear.

3. Customizability: The Mopar P4120237 kit offers several camshaft grind options to cater to various performance goals. This allows you to fine-tune the engine's power delivery based on your specific application and driving preferences.

1. Cost: The NOS Performance Shaft 509 292 Camshaft Kit is a premium upgrade, and the cost reflects its high-performance capabilities. This may be a significant investment for some enthusiasts, depending on their budget.

2. Installation Complexity: Installing this camshaft kit requires a fair amount of mechanical expertise and specialized tools. Some engine modifications may be necessary to accommodate the larger valves and increased valve clearance.

3. Potential Powerband Shift: Depending on the chosen camshaft grind, there may be a noticeable powerband shift. This could impact the overall driving experience and may require additional adjustments to the fuel system or ignition timing.

The Mopar P4120237 NOS Performance Shaft 509 292 Camshaft Kit RB 383 440 is an excellent choice for enthusiasts seeking to significantly enhance their engine's performance. Its durability, customizability, and potential power gains make it a worthwhile investment for those with the necessary budget and mechanical expertise. However, the complex installation process and potential powerband shift may deter some potential buyers.

If you are committed to enhancing the performance of your Chrysler engine and have the necessary resources (budget, tools, and mechanical expertise), the Mopar P4120237 NOS Performance Shaft 509 292 Camshaft Kit RB 383 440 is an excellent choice. However, carefully consider the pros and cons and discuss your specific application with a knowledgeable professional to ensure this upgrade aligns with your goals and capabilities.

Details:

This is a one bolt camshaft. Fits 361, 383, 4 413 426 W and 440 Chrysler engines. This is a good one. New old stock unused Mopar Performance Purple Shaft .509 lift 292 duration cam kit.

$25 shipping in the USA.

part #: p4120237 prices

• $249.00-$453.90

specifications cashalif:

• for models: 440
• for makes: Mopar
• mpn: P4120237
• type: Camshaft
• performance part: Yes

shipping cashalif:

• transit: 4-10 Days
• service: Standard
• cost: $25.00
• class: Standard
• type: Fixed

returns cashalif:

• policy: No Returns

general cashalif:

• condition: Used
• Engines Engine Parts > Valvetrain Components > Camshafts

offer cashalif:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: September 13, 2025
• sold: 0

seller cashalif:

• rating: 100.0%
• city: Appleton, Wisconsin
• # reviews: 2537

payments cashalif:

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

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