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- COMP Cams 1400N-16 Replacement Adjusting Nut ...
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Item #:
42501
COMP Cams 1400N-16 Replacement Adjusting Nut Set for Magnum Rockers w/ 3/8" Stud
88% of respondents would recommend this to a friend
Item #:
42501
SCR 407
Price Details
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QTY:
Only 12 items left in stock.
Order now and get it around Sunday, September 20
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COMP Cams Rocker Arm Nuts are a good upgrade for stock components.
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What Stands Out
Precision Engineering
Crafted with precision, these adjusting nuts ensure perfect alignment and optimal performance for Magnum rockers, enhancing engine efficiency and reliability.
Durable Material
Constructed from high-quality materials, this nut set provides superior strength and longevity, reducing wear and tear compared to competitors for extended service life.
Easy Installation
Designed for quick and straightforward installation, these nuts save time and effort during engine assembly, making them ideal for both enthusiasts and professional mechanics.
Product Details
| Fastener Type | Hex |
| Thread Size | 3/8 inch (96.5 cm) |
| Exterior Finish | Machined |
| Color | silver or gray |
| Thread Type | Unified National Coarse (Unc) |
| Inside Thread Size | 3/8 inch (96.5 cm) |
| Thread Style | Unified National Coarse (UNC) |
| Thread Coverage | Fully Threaded |
| Thread Class | Class 2A |
| Maximum Shear Strength | 250-500 MPa |
| Compatible Groove Diameter | 0.38 inches (1 cm) |
| Grade Rating | commercial |
| Item Dimensions | 4.2 x 4 x 0.4 inches (10.7 x 10.2 x 1 cm) |
| Item Weight | 7.2 ounces (204.12 grams) |
| Size Name | Extra Large |
| Item Diameter | 0.38 inches (1 cm) |
| Number of Pieces | 16 |
| Outside Diameter | 0.38 inches (1 cm) |
| Brand | Comp Cams |
| UPC | 036584330585 |
| Set Name | Magnum Rocker Arm Nut Set (16 Piece) |
| Global Trade Identification Number | 00036584330585 |
| Manufacturer | Competition Cams |
| Unit Count | 1 Count |
| Included Components | Replacement Adjusting Nut Set for Magnum Rockers w/ 3/8" Stud |
| Item Type Name | Replacement Adjusting Nut Set for Magnum Rockers w/ 3/8" Stud |
| Model | 1400N-16 |
| Number Of Items | 1 |
| Part Number | 1400N-16 |
| Material Type | Aluminum |
| Metal Type | Alloy Steel |
| Finish Types | Matte |
| Material | Aluminum |
What's in the box
Replacement Adjusting Nut Set for Magnum Rockers w/ 3/8" Stud
Who Should Buy?
-
Engine Builders
Ideal for professionals assembling performance engines requiring precision adjustment and reliability in rocker arm systems.
-
Auto Enthusiasts
Great for car enthusiasts looking to enhance engine performance and adjust valve train setups with quality components.
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Racing Applications
Perfect for racing teams needing durable and precise adjusting nuts for optimal rocker arm performance in competitive settings.
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Casual Drivers
Not suitable for casual drivers who do not prioritize high-performance adjustments in their everyday vehicles.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the COMP Cams 1400N-16 Replacement Adjusting Nut Set used for?
Answer: The COMP Cams 1400N-16 Replacement Adjusting Nut Set is specifically designed for use with Magnum Rockers featuring a 3/8" stud. This set provides essential adjustments for your rocker arms, ensuring precise valve operation and optimal engine performance. Proper adjustments allow for improved valve clearance and better synchronization of engine components. It’s a great solution for those looking to maintain or upgrade their performance engine setups, especially in engines designed for racing or high-performance applications. -
Question:
Are these adjusting nuts compatible with all Magnum Rockers?
Answer: The 1400N-16 adjusting nuts are tailored for COMP Cams Magnum Rockers utilizing a 3/8" stud size. It's crucial to verify compatibility with your specific rocker model before purchase. Various Magnum Rockers may have different specifications, so checking your product manual or the manufacturer's specifications will ensure these nuts will fit correctly. Using the right adjustments is key to achieving ideal performance and longevity of your valve train components. -
Question:
How many nuts are included in the COMP Cams 1400N-16 set?
Answer: The COMP Cams 1400N-16 Replacement Adjusting Nut Set contains a total of 16 adjusting nuts. This quantity is suitable for most V8 engine setups, allowing you to equip multiple rockers and ensuring that every cylinder's valve operation can be finely tuned. If you're working on a complete engine rebuild or simply replacing worn nuts, this set provides the necessary components for that thorough approach to your engine's performance tuning. -
Question:
Can I use the 1400N-16 nuts for other brands of rockers?
Answer: These adjusting nuts are specifically designed for COMP Cams Magnum Rockers with a 3/8" stud. While some aftermarket rockers may have similar configurations, compatibility is not guaranteed with other brands. Always reference the manufacturer's specifications to ensure that the nuts will properly fit and function on different rocker sets. Mismatched components can lead to performance issues, so it’s best to stay within the same brand for optimal results. -
Question:
Why is it important to have replacement adjusting nuts for rockers?
Answer: Replacement adjusting nuts for rockers are critical for maintaining proper valve clearance and ensuring the performance of your engine. Over time, the original nuts can wear down or become damaged, leading to increased play in your valve train which can negatively impact engine efficiency and longevity. Having a set of replacements on hand allows for quick adjustments and repairs, ensuring your engine runs smoothly and effectively during operation. -
Question:
What tools are required to install the COMP Cams adjusting nuts?
Answer: To install the COMP Cams 1400N-16 adjusting nuts, you will typically need a socket wrench that matches the nut size and potentially a torque wrench to ensure that they are tightened to the correct specifications. Additionally, having a basic understanding of the valve train setup is essential for correctly adjusting the rockers and achieving a proper fit. This installation is usually a straightforward task for those familiar with automotive mechanics. -
Question:
Can these nuts affect my car's performance?
Answer: Yes, using the appropriate adjusting nuts, like the COMP Cams 1400N-16, can significantly affect your car’s performance. Properly adjusted rockers ensure consistent valve timing and operation, which is critical for engine efficiency. If valve clearances are incorrect due to worn or incorrect adjusting nuts, it can lead to performance loss, engine noise, or even damage. Maintaining your valve train with quality components directly correlates with the reliability and performance of your vehicle. -
Question:
What materials are the COMP Cams 1400N-16 nuts made from?
Answer: The COMP Cams 1400N-16 Replacement Adjusting Nuts are crafted from high-quality materials designed for durability and reliability in high-performance applications. Typically, they feature a robust steel construction that can withstand the rigors of engine operation. The choice of materials not only enhances their longevity but also their ability to maintain precise adjustments under high-stress conditions, such as racing environments or high RPM applications. -
Question:
Is an installing guide included with the 1400N-16 set?
Answer: While the COMP Cams 1400N-16 Replacement Adjusting Nut Set generally does not come with a detailed installation guide, basic installation instructions are often available on COMP Cams' official website or product documentation. Users are also encouraged to refer to engine build manuals and online resources, as many automotive forums provide insights and tips on installation, ensuring a smooth adjustment and fitting process. Familiarity with engine assembly will enhance your experience. -
Question:
Where can I buy COMP Cams 1400N-16 Replacement Adjusting Nut Set in Seychelles?
Answer: You can purchase the COMP Cams 1400N-16 Replacement Adjusting Nut Set at Ubuy in Seychelles. Ubuy offers a convenient platform for finding automotive parts and performance accessories, providing you with a trusted source to acquire the parts you need for your engine maintenance or upgrades. With an efficient selection process and comprehensive product details, Ubuy simplifies your shopping experience, making it easier to get the components that enhance your vehicle's performance.
Comp Cams Nuts & Bolts Editorial Review
The COMP Cams 1400N-16 Replacement Adjusting Nut Set has garnered a favorable reception from customers who have utilized these nuts for their Magnum Rockers and various GM engine applications, particularly the 5.7L Mercruiser and small block Chevy engines. Many users reported that the nuts fit perfectly and provided an excellent hold on their rocker arms, which is critical for maintaining proper valve adjustments. This reliability has led to a smoother operation in the valve train, eliminating noises such as valve tapping that can occur with inferior products. Customers have emphasized the importance of replacing these nuts when tweaking their valve setups, as doing so seems to extend the time between adjustments, ensuring better performance over the long haul. Others appreciated the high quality of the nuts, noting that they are strong and durable enough to withstand the rigors of continued use in performance engines. Overall, feedback suggests that these replacement nuts make a solid and worthwhile investment for anyone working on applications that require reliable valvetrain components. **
Customer Reviews & Ratings
201 customers ratings
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5 Star
77%
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4 Star
13%
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3 Star
2%
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2 Star
1%
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1 Star
7%
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Pros
- High-quality Construction
- Perfect fit for a variety of applications (5.7L Mercruiser, SBC)
- Strong hold that maintains valve adjustment effectively
- Enhances performance by minimizing valve train noise
- Recommended for replacing old or reused nuts
Cons
- Some users experienced loosening after adjustment (suggestion to always replace with new nuts)
Platform Trust & Buyer Confidence
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Jazz
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“Easy to use and always helpful and sorts any issues I've had past and present”
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“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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SCR 407
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QTY:
Only 12 items left in stock.
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Features & Benefits
- Upgrade your stock components with COMP Cams Rocker Arm Nuts.
- Designed for easy replacement of Magnum Roller Tip Rocker Arms.
- Universal fit ensures compatibility with multiple setups.
- Lightweight design at just 0.45 pounds for easy handling.
- Made in the USA for quality assurance.
- Enhance performance and reliability with this essential upgrade.
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