fits model: Hemi. year: 2016.

( Brand: Manley ), ( Manufacturer Part Number: 26641 ), ( Part Type: Wall Pushrod ), ( Warranty: 30 Days ), ( UPC: 807298082615 )
The **Manley 26641 Pushrod** is a meticulously crafted, high-performance component designed specifically for the iconic **Hemi 4.1L V8 engine**, a powerhouse renowned for its aggressive pushrod angles and demanding operating conditions. Engineered from **16-gauge, 4130 chromoly steel**, this pushrod combines exceptional strength with precision machining to deliver reliability under extreme loads, making it an ideal choice for both street and track applications. The **120-degree wall thickness** ensures optimal stiffness and durability, minimizing flex and resonance while maintaining a tight, consistent fit within the rocker arm and valve guide assembly. Whether you're running a high-revving, high-horsepower build or a daily driver pushing the limits of performance, this pushrod stands out for its **superior hardness and wear resistance**, achieved through a rigorous heat-treating process that enhances its fatigue life. The **polished, smooth finish** not only reduces friction but also ensures a snug, interference-free installation, reducing the risk of premature wear or binding. Built to exacting standards, the Manley 26641 pushrod is a testament to the brand s commitment to quality, offering a perfect balance of strength, precision, and longevity for the most demanding Hemi applications.
### **Pros and Cons of Buying a Manley 26641 Pushrod Kit (Hemi 4L 4130 16/120 Wall)**
#### **Pros:**1. **Performance Gains** This pushrod kit is designed for high-performance applications, particularly in small-block Hemi engines. It is optimized for increased valve lift, better valve train efficiency, and improved airflow, which can lead to noticeable power increases, especially when paired with a high-performance camshaft.
2. **Durability and Strength** The **4130 chromoly steel** construction ensures high strength-to-weight ratio, making these pushrods ideal for aggressive engine builds, including forced induction applications. The **16/120 wall thickness** provides a balance between strength and flexibility, reducing the risk of breakage under heavy loads.
3. **Compatibility** The **26641** designation indicates it is specifically engineered for **4L Hemi engines**, ensuring proper fitment with stock or aftermarket components. It is designed to work with **16mm rocker arms**, which is common in high-performance Hemi builds.
4. **Heat Resistance** Chromoly steel (4130) has excellent heat resistance, making these pushrods suitable for high-RPM applications and forced induction setups where temperatures can rise significantly.
5. **Aftermarket Support** Manley is a well-respected brand in the performance engine market, and these pushrods are widely used in tuning communities. This means they are easy to find, have available replacement parts, and are often recommended by engine builders.
6. **Reduced Valvetrain Stress** The design of these pushrods helps distribute stress more evenly, reducing the likelihood of premature failure in the pushrods or other valvetrain components.
7. **Versatility** While optimized for performance, these pushrods can also be used in stock or mildly modified engines where durability is a concern, such as in high-mileage or daily-driver applications with aggressive camshafts.
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#### **Cons:**1. **Cost** High-performance pushrods like these are not cheap. The price reflects their **chromoly construction and precision machining**, which can be a significant investment compared to stock or budget aftermarket options.
2. **Installation Complexity** Installing these pushrods requires **proper valvetrain setup**, including correct rocker arm installation, valve spring preload, and pushrod length verification. Improper installation can lead to binding, premature wear, or failure.
3. **Not Universal** These pushrods are **specific to the 4L Hemi architecture** and **16mm rocker arms**. If your build deviates significantly (e.g., different rocker arm size or a different engine variant), compatibility may be an issue.
4. **Potential for Overkill** If your engine is not heavily modified (e.g., stock camshaft, no forced induction), these pushrods may be **more than necessary**, offering diminishing returns in performance gains while adding cost.
5. **Maintenance Considerations** Chromoly pushrods, while durable, still require **regular inspection** for signs of wear, bending, or corrosion. In high-mileage or aggressive applications, they may need replacement more frequently than stock pushrods.
6. **Weight** While chromoly is strong, it is also heavier than some alternative materials (e.g., titanium). In high-RPM applications, this added weight can contribute to slight valvetrain lag, though the impact is usually minimal.
7. **Potential for Misapplication** If these pushrods are used with **incompatible components** (e.g., incorrect rocker arm length, improper valve spring retention, or a camshaft with excessive lift), they may not perform as expected and could fail prematurely.
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### **Conclusion:**The **Manley 26641 pushrod kit** is an excellent choice for **high-performance 4L Hemi builds**, particularly those involving **forced induction, aggressive camshafts, or reliability-focused modifications**. Its **chromoly construction, precise engineering, and compatibility with 16mm rocker arms** make it a top-tier option for serious engine builders. However, it is **not a necessity for stock or mildly modified engines**, where stock or budget pushrods may suffice.
The **primary benefit** is **durability and performance potential**, while the **main drawbacks** are **cost, installation complexity, and the need for proper valvetrain setup**. If you are building a **high-RPM, high-torque, or forced-induction Hemi engine**, these pushrods are a **strong recommendation**. For **stock or lightly modified applications**, they may be **overkill**, and a more budget-friendly option could be considered.
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### **Recommendation:**- **Buy if:** You are building a **high-performance 4L Hemi engine** (e.g., turbocharged, supercharged, or with an aggressive camshaft), prioritize **durability and reliability**, and are willing to invest in **premium components**.
- **Consider alternatives if:** Your build is **stock or mildly modified**, where stock pushrods or lower-cost aftermarket options (e.g., ARP, JE, or budget chromoly) may be sufficient.
- **Pair with:** A **proper valvetrain setup** (correct rocker arms, valve springs, and retainers), **high-quality lubrication**, and **regular maintenance** to ensure longevity.
Ultimately, these pushrods are a **wise investment for performance-focused Hemi builds** but should be chosen based on the **specific needs of your engine project**.
Manley 26641 Pushrod, HEMI 6.4L 4130 5/16 .120 WALL,:: Dodge 5.7L/6.4L Hemi 5/16in .120in Wall Chrome Molly Wedged End Pushrod 8 INT/8 EXH. For kits, photo might show entire kit and listing is only for one component. Note: Photos do not always represent the actual product.