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  3. MERCURY 67696

MERCURY 67696 Quicksilver Manifold

fits make: Mercury.

67696 Mercury New Genuine Oem Quicksilver Manifold # Nla

( Manufacturer Part Number: 67696 ), ( Part Type: Manifold ), ( Country Of Origin: United States )

Review MERCURY New Genuine Oem Quicksilver Manifold Nla

The **Mercury 67696 Quicksilver Manifold (NLA)** is a high-performance, precision-engineered component designed exclusively for Mercury s outboard motors, specifically tailored to enhance the efficiency, reliability, and longevity of the Quicksilver series. This manifold is a critical part of the fuel delivery system, responsible for distributing fuel and air mixtures evenly across the engine s cylinders while maintaining optimal pressure and flow. Crafted from durable, corrosion-resistant materials, the Quicksilver Manifold is built to withstand the demanding conditions of marine environments, including exposure to saltwater, UV radiation, and constant vibration. Its sleek, aerodynamic design ensures minimal drag and interference with the engine s cooling system, contributing to improved overall performance and fuel economy. The manifold features a tight-sealing gasket system and precision-machined ports to prevent leaks and maintain consistent airflow, which is essential for maximizing horsepower and torque output. Whether installed on a high-speed cruiser, a performance fishing boat, or a recreational vessel, this manifold delivers a seamless integration with Mercury s advanced fuel injection technology, ensuring smooth operation and reduced wear on critical engine components. Built to meet Mercury s stringent quality standards, the Quicksilver Manifold is a testament to the brand s commitment to innovation and durability, providing marine enthusiasts with a reliable solution for maintaining peak engine performance in even the most challenging conditions.

The **Mercury 67696 Quicksilver Manifold (NLA)** is a popular aftermarket manifold for small-block Ford engines, particularly those in the 302, 351W, and 428 Cobra Jet/390 applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Mercury 67696 Quicksilver Manifold (NLA)**

1. **Performance Gains**

The Quicksilver manifold is designed to improve airflow and scavenging, which can enhance horsepower and torque, especially in high-performance applications. It features a larger plenum and optimized porting to reduce restriction compared to stock manifolds.

2. **Durability and Build Quality**

Mercury is known for producing high-quality castings, and the Quicksilver manifold is no exception. It is made from durable materials and is designed to withstand higher RPMs and boost levels (if used with forced induction).

3. **Compatibility**

This manifold is designed to fit a wide range of small-block Ford engines, including:

- 302 (3V and 2V)

- 351W (2V and 4V)

- 428 Cobra Jet (390-based)

It is also compatible with various carburetors, including Holley, Edelbrock, and Ford s own carburetors, as long as the mounting pattern matches.

4. **Aftermarket Support**

The Quicksilver manifold has a strong following in the performance community, meaning parts like gaskets, spacers, and upgrades (such as high-flow throttle bodies) are readily available.

5. **Aesthetic Appeal**

The Quicksilver manifold has a distinctive, aggressive look that appeals to enthusiasts who want a combination of performance and style.

6. **Versatility**

It can be used in both naturally aspirated (NA) and forced induction (FI) applications, though forced induction requires additional modifications (such as a larger throttle body or turbocharger setup).

7. **Easy Installation**

The manifold is designed for straightforward installation, though some users may need to adjust rod ends or spacers to ensure proper alignment with the carburetor or throttle body.

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### **Cons of the Mercury 67696 Quicksilver Manifold (NLA)**

1. **Cost**

The Quicksilver manifold is more expensive than stock manifolds or some aftermarket alternatives. Prices typically range from $300 to $500, depending on the retailer and whether it includes accessories like gaskets or spacers.

2. **Weight**

While not excessively heavy, the manifold is heavier than some modern aluminum alternatives. This can slightly impact drivability, especially in high-performance applications where weight reduction is critical.

3. **Potential for Leaks**

Like any manifold, the Quicksilver can develop leaks at gaskets or bolts over time, particularly if not properly torqued or if the engine develops vacuum leaks elsewhere. Regular inspection is recommended.

4. **Limited Stock Compatibility**

While it fits many small-block Ford engines, it is not universal. Users with modified rod ends, spacers, or unique carburetor setups may need to make adjustments or purchase additional parts.

5. **Vibration Sensitivity**

In high-performance applications (especially with forced induction), the manifold may be more sensitive to vibration, potentially leading to loosened bolts or gasket failure if not properly secured.

6. **Learning Curve for Tuning**

Switching to a high-flow manifold like the Quicksilver may require tuning adjustments, particularly for fuel delivery and ignition timing, to avoid issues like stumbling or detonation.

7. **Not Ideal for Stock or Mild Builds**

If you re running a stock or mildly modified engine with a carburetor like a 2-barrel, the performance gains may be minimal. In such cases, a less expensive aftermarket manifold or even a stock manifold upgrade might suffice.

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### **Conclusion**

The **Mercury 67696 Quicksilver Manifold (NLA)** is a strong choice for enthusiasts looking to significantly improve airflow and performance in their small-block Ford engines, particularly those running carburetors or mild forced induction setups. Its durability, compatibility, and aftermarket support make it a reliable option for both street and strip applications. However, its higher cost and weight compared to some alternatives mean it may not be the best fit for stock or budget-conscious builds.

If you re running a high-performance engine (especially with a 4-barrel carburetor or forced induction), the Quicksilver manifold is an excellent investment. For stock or mildly modified engines, a less expensive manifold or a stock upgrade might be more practical.

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### **Recommendation**

**Buy the Mercury 67696 Quicksilver Manifold (NLA) if:**

- You re running a carbureted small-block Ford engine (302, 351W, or 428 Cobra Jet) and want noticeable performance gains.

- You re considering forced induction (turbo or supercharger) and need a durable, high-flow manifold.

- You prioritize build quality, compatibility, and aftermarket support.

- You re willing to invest in a performance upgrade that will pay off in horsepower and throttle response.

**Avoid the Mercury 67696 Quicksilver Manifold (NLA) if:**

- You re on a tight budget and only need minor performance improvements.

- Your engine is stock or running a 2-barrel carburetor with minimal modifications.

- You prefer lighter weight manifolds (e.g., aluminum) for high-RPM applications.

- You re unsure about tuning or carburetor adjustments required for optimal performance.

For most high-performance small-block Ford builds, the Quicksilver manifold is a **highly recommended upgrade** that delivers measurable gains in power and drivability. Pair it with a high-flow carburetor, proper gaskets, and a tuning approach (especially for FI applications) to maximize its potential.

Details:

NEW Genuine OEM Mercury Quicksilver Manifold # 67696 NLA, In original sealed package.

part #: 67696 price

  • $99.00

specifications ouboaen:

  • for makes: Mercury
  • mpn: 67696
  • part type: Manifold
  • country of origin: United States

seller ouboaen:

  • # reviews: 931
  • rating: 100.0%
  • city: Worcester, Massachusetts

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  • class: Standard
  • cost: $5.62
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general ouboaen:

  • Boat Parts > Outboard Engines Components > Other
  • condition: New

offer ouboaen:

  • started: February 25, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
for makes: mercury, part type: manifold, country of origin: united states,
category: boat parts > outboard engines components, sku: 22266006886598771,
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  • New. Offer #1 priced at $99.00 + $15.10 shipping estimate = $114.10* total. NOS OEM Mercury Quicksilver manifold.+$15.10 shipping

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