FORD Svo Degreed Harmonic Balancer Roush Yates 5-7/8 O.d. E6ZM-6316-C380

( Manufacturer Part Number: E6ZM6316C380 ), ( Part Type: Balancer ), ( Bore Size: Standard ), ( Manufacturer Warranty: No ), ( Country Of Origin: United States )

Review FORD Svo 5-7/8 Inch.d. Degreed Harmonic Balancer Roush Yates fits SB

The **Ford E6ZM6316C380 SVO SB 5-7/8" O.D. Degreed Harmonic Balancer (E6ZM-6316-C380, Roush Yates)** is a high-performance, precision-engineered component designed to enhance the durability, balance, and reliability of Ford s iconic 5.0L Coyote engine, particularly in applications where aggressive driving, high RPM demands, or heavy-duty modifications are present. This harmonic balancer is specifically tailored for the **E6ZM (SVO) engine variant**, which powers everything from the **Ford Mustang GT, Shelby GT500, and Ford F-150 Raptor** to Roush Yates and other performance-focused builds. Crafted from a **high-strength, heat-treated steel alloy**, this balancer features a **5-7/8-inch outer diameter**, providing ample mass to effectively dampen torsional vibrations and reduce engine strain under extreme loads. The **degreed design** ensures proper phasing with the crankshaft, minimizing harmonic distortion and promoting smoother operation, which is critical for engines running at elevated RPMs or under heavy torque loads. The **SB (Special Bolt) pattern** indicates a reinforced mounting system, offering superior clamping force and reducing the risk of loosening under high G-forces, making it ideal for track use, towing, or high-performance street applications. Whether installed in a **stock Coyote, a Roush Yates-prepped engine, or a heavily modified performance build**, this balancer delivers a balance of strength, precision, and longevity, ensuring optimal engine performance while mitigating the risks of catastrophic failure from excessive vibration. Built to withstand the demands of modern high-output engines, it is a must-have upgrade for enthusiasts seeking to maximize power delivery and engine protection in both daily driving and competitive scenarios.

### **Pros and Cons of buying a Ford E6ZM-6316-C380 (Roush Yates) Degreed Harmonic Balancer**

1. **Improved Engine Balance and Smoothness**

The Roush Yates degreed harmonic balancer is designed to reduce vibration in high-performance Ford engines, particularly those with modified camshafts or aggressive valve springs. This leads to a smoother idle and reduced engine strain, which can enhance longevity and drivability.

2. **Compatibility with High-Performance Applications**

This balancer is specifically engineered for the **E6ZM (5.0L Coyote) engine**, making it ideal for modified Ford engines, especially those running **Roush Yates, JE, or other high-performance camshafts**. It helps mitigate the effects of increased valve spring tension and camshaft phasing, which can cause excessive vibration in stock harmonic balancers.

3. **Durability and Reinforced Construction**

The **degreed design** (with precise weight distribution) and **steel construction** make this balancer more robust than stock units, reducing the risk of warping or failure under high RPM or torque loads. It is built to withstand the stresses of aggressive engine modifications.

4. **Better for Forced Induction Applications**

If you plan to add **turbocharging or supercharging**, this balancer can help manage the increased load on the crankshaft system, reducing the risk of harmonic distortion that could lead to premature wear on related components.

5. **Easy Installation**

The **5-7/8" OD** (outside diameter) matches the stock Ford E6ZM harmonic balancer, allowing for a straightforward swap without requiring additional modifications. Most mechanics and DIYers can install it without specialized tools.

6. **Positive Feedback from Performance Community**

Roush Yates is a well-respected brand in the Ford performance scene, and this balancer has received favorable reviews from tuners and builders for its effectiveness in reducing vibration in modified engines.

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1. **Cost Compared to Stock or Aftermarket Alternatives**

This balancer is **not cheap**, typically costing **$200 $300**, depending on the source. While it is a significant upgrade over the stock unit, there may be more budget-friendly aftermarket options (e.g., **Crankshaft Balancer Solutions, JE, or other degreed balancers**) that offer similar benefits at a lower price.

2. **Limited Use for Stock or Mildly Modified Engines**

If your engine is **stock or only mildly modified** (e.g., stock camshafts, no forced induction), the stock harmonic balancer may suffice, and upgrading may not provide noticeable benefits. The **degreed design is most beneficial under high-stress conditions**.

3. **Potential for Overkill on Some Applications**

Some builders argue that while this balancer is excellent for **high-RPM, high-torque setups**, it may not be necessary for **low-RPM street engines** or those running **stock or mild camshafts**. In such cases, a **stock balancer or a lighter aftermarket option** might be sufficient.

4. **Weight Considerations**

Degreed balancers are **heavier than stock units** due to their reinforced construction. While this improves balance, it may slightly affect **crankshaft harmonics** in very high-performance applications where weight reduction is critical (e.g., extreme drag racing or track cars).

5. **Requires Proper Installation and Tuning**

Simply swapping the balancer does not guarantee a smooth-running engine. If the **camshaft timing, valve springs, or crankshaft harmonics are not properly tuned**, you may still experience vibration issues. This balancer works best when paired with a **balanced crankshaft and properly matched components**.

6. **Limited Availability of Replacement Parts**

While Roush Yates parts are durable, if the balancer fails (though rare), finding an exact replacement may be more difficult than for more common aftermarket brands.

---

### **Conclusion**

The **Ford E6ZM-6316-C380 Roush Yates degreed harmonic balancer** is a **high-quality, performance-focused upgrade** that excels in **high-RPM, high-torque, or forced-induction applications**. It is particularly beneficial for engines running **aggressive camshafts, modified valve springs, or Roush Yates components**, as it significantly reduces vibration and improves drivability.

However, it is **not a universal fix** it is best suited for **serious performance builds** rather than stock or mildly modified engines. If your application does not involve **high-stress conditions**, a **stock balancer or a more budget-friendly aftermarket option** may be sufficient.

### **Recommendation**

- You are running a **modified E6ZM engine** (e.g., Roush Yates, JE, or similar high-performance camshafts).

- Your engine is **forced-induction (turbo/supercharged)** or heavily modified.

- You experience **excessive vibration at idle or high RPM** with your current setup.

- You want a **durable, high-quality balancer** from a trusted brand.

- Your engine is **stock or only mildly modified** (stock camshafts, no forced induction).

- You are on a **tight budget** and can find a comparable balancer at a lower cost.

- You are running a **very high-performance application** where **weight reduction is critical** (e.g., extreme drag racing), and a **lighter degreed balancer** (if available) would be preferable.

**Final Verdict:** For **serious Ford E6ZM performance builds**, this balancer is a **worthwhile investment** that enhances reliability and smoothness. For **stock or lightly modified engines**, the benefits may not justify the cost. Always ensure that the rest of your engine s components (crankshaft, camshaft, valve springs) are properly balanced for optimal results.

Details:

part #: e6zm6316c380 prices

• $99.99-$192.32

specifications cranshafengin:

• for models: Sb
• for makes: Ford
• mpn: E6zm6316c380
• part type: Balancer
• bore size: Standard
• manufacturer warranty: No
• country of origin: United States

offer cranshafengin:

• availability: In Stock
• sold: 0
• best offers: True
• quantity: 1
• options: Ship-to-home
• started: March 10, 2026

general cranshafengin:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

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• class: Standard, Expedited
• cost: $9.52
• transit: 2-6 Days
• service: USPS Ground Advantage, UPS Ground, FedEx Ground / FedEx Home Delivery, USPS Priority Mail
• type: Calculated

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• policy: No Returns

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• # reviews: 41538
• city: Monmouth, Illinois
• rating: 100.0%

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