ORIGINAL FORD AUTOLITE 6A666-6A666 Nos Pcv Valve C9OE-6A666-C6AZ-6A666 69

( Brand: Original Ford Autolite ), ( Manufacturer Part Number: 6A666-6A666 ), ( Part Type: Valve ), ( Ipn: C9oe 6a666 C6az 6a666 ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review ORIGINAL FORD AUTOLITE 69 And Nos Pcv Valve Correct fits MUSTANG SHELBY GT 350 351 1970

The **Ford Autolite 6A666-6970 Mustang Shelby GT 350 NOS PCV Valve (Part Number C9OE 351)** is a meticulously crafted, high-performance replacement valve designed specifically for the legendary **1969 1970 Ford Mustang Shelby GT 350** models equipped with the iconic **351 Cleveland V8 engine**. This **Never-Out-Of-Stock (NOS)** PCV (Positive Crankcase Ventilation) valve is a direct OEM replacement, ensuring an exact fit and seamless integration with the engine s emissions system while maintaining the original performance and reliability that made these muscle cars legendary. Engineered from durable, heat-resistant materials, this valve is built to withstand the high temperatures and pressures generated by the aggressive breathing of the **428 Cobra Jet or 351W high-performance engines** found in these models. The **6A666-6970** is not merely a functional component but a nod to automotive heritage, preserving the authenticity of the original equipment while adhering to modern emissions standards. Whether restoring a classic Shelby GT 350 to its former glory or maintaining a meticulously preserved example, this PCV valve guarantees proper crankcase ventilation, reducing oil consumption and preventing harmful blow-by gases from escaping into the atmosphere. Its **universal compatibility** with the **C9OE 351** engine code further solidifies its place as an essential part for enthusiasts seeking both performance and authenticity in their Ford muscle machines.

### **Pros and Cons of Buying a Ford Autolite 6A666-69/70 Mustang Shelby GT 350 NOS PCV Valve (C9OE 351)**

#### **Pros**

1. **High Performance Potential**

The **C9OE 351 Cleveland engine** (found in the 1969 1970 Shelby GT 350) is one of the most legendary Ford V8s ever made. With proper maintenance, it can produce **350 400 horsepower** in stock form and much more with modifications. The **351W (C9OE) variant** is known for its high-revving nature, making it ideal for drag racing, street tuning, or restoration.

2. **Rarity and Collectibility**

The **1969 1970 Shelby GT 350** is one of the most sought-after Mustangs in the classic car market. A **NOS (New Old Stock) PCV valve** (part number **6A666-69/70**) indicates that the engine was never installed, meaning it has **zero wear** and is in **original, unopened condition**. This makes it extremely valuable to collectors and restorers.

3. **Historical Significance**

The **GT 350** was Ford s answer to the **Chevrolet Camaro and Pontiac Firebird**, offering a **high-performance, lightweight muscle car** with a **290 HP (1969) or 300 HP (1970) 351W engine**. Owning a NOS component from this era adds **authenticity and prestige** to any collection.

4. **Potential for Restoration or Build**

If you plan to restore or build a **1969 1970 Shelby GT 350**, a **NOS PCV valve** ensures that you re using **original, factory-spec parts**, which is crucial for maintaining **historical accuracy**. The **351W engine** is also a favorite for **hot rodding**, making it a great choice for performance enthusiasts.

5. **Investment Value**

NOS parts from this era **appreciate over time**, especially when they remain **unopened and unused**. The **PCV valve** itself may not be a high-value item, but it s a **small but meaningful piece** of a highly desirable car. If you re building a **complete NOS Shelby GT 350**, every original part increases its worth.

---

#### **Cons**

1. **High Cost**

NOS parts from the **1969 1970 Shelby GT 350** are **expensive**, especially when they come from **unopened boxes**. While the **PCV valve** itself may not cost thousands, **full NOS engine builds** can exceed **$50,000 $100,000 ** depending on rarity. Even a single NOS part can be **2 5x the price** of a used equivalent.

2. **Limited Practical Use**

The **PCV valve** is a **small, relatively inexpensive component** (typically **$20 $50 new today**). Its value lies more in **collectibility than functionality**. If you re not restoring a Shelby GT 350, this part may not be **essential** for a project.

3. **Risk of Counterfeit or Mismatched Parts**

- **Verify authenticity** (check for **original Ford packaging, serial numbers, and condition**).

- **Inspect for signs of use** (even slight wear can mean the part was opened and reused).

- **Buy from reputable dealers** (avoid eBay or random sellers without proper documentation).

4. **Storage and Preservation Challenges**

NOS parts require **proper storage** to prevent **dust, moisture, or damage**. If not stored correctly, they can **degrade over time**, reducing their value. This means you ll need to **keep them in a climate-controlled environment** with **original packaging**.

5. **Potential for Overpaying**

Some buyers get **emotionally attached** to NOS parts and pay **premium prices** without considering **real-world utility**. If you re not a **restorer or collector**, the **PCV valve alone may not justify its cost**.

---

### **Conclusion**

- You are **restoring or building a 1969 1970 Shelby GT 350** and want **original, unopened parts** for authenticity.

- You are a **collector** who appreciates **historical automotive memorabilia**.

- You are **building a full NOS engine** and want every component to be **factory-fresh**.

However, if you are **not a restorer or collector**, the **PCV valve alone may not be worth the cost** since it is a **low-value, functional part**. In that case, a **used or reproduction part** would be a **more practical and budget-friendly** alternative.

---

### **Recommendation**

- **If restoring a Shelby GT 350:** **Purchase the NOS PCV valve** (and other NOS parts) to maintain **historical accuracy**. The **long-term value and satisfaction** of owning a **fully NOS car** far outweigh the upfront cost.

- **If not restoring a Shelby:** **Skip the NOS PCV valve** and opt for a **used or aftermarket replacement** to save money. The **PCV valve is not a critical component**, and its value is mostly **collector-driven**.

- **If investing in NOS parts for future resale:** **Focus on higher-value components** (such as **NOS carburetors, distributors, or full engines**) rather than small parts like the PCV valve.

- **Always verify authenticity** before purchasing to avoid **counterfeit parts** that could **devalue your collection**.

Ultimately, the **PCV valve is a small but meaningful piece** of Shelby GT 350 history, but its **true value depends on your goals** whether they are **performance, restoration, or pure collectibility**.

Details:

This is the old of metal valve unlike all more replacements which are made plastic. Would look great on a Mach 1 or Shelby. It is flawless correct for all 1969 1970 Shelby 350 model's. It is tough to find the original Ford metal valves like this one.

These are not available in reproduction. It is the correct metal of valve and has original Autolite stamping engineering numbers. This is an old school vintage NOS Ford Autolite PCV valve which correct for 1969 1970 351 engines.

part #: 6a6666a666 prices

• $29.99-$98.00

specifications emissyste:

• for models: Gt, 350, 351, Mustang, Shelby
• for makes: Ford
• for years: 1970
• brand: Original Ford Autolite
• mpn: 6a666-6a666
• part type: Valve
• ipn: C9oe 6a666 C6az 6a666
• vintage part: Yes
• country of origin: United States

shipping emissyste:

• class: Standard
• type: Fixed
• transit: 2-5 Days
• service: Standard
• cost: $14.00

payments emissyste:

• wallet: Paypal
• credit card: Visa
• other

seller emissyste:

• city: Florida
• rating: 100.0%
• # reviews: 6273

returns emissyste:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer emissyste:

• sold: 0
• started: April 16, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1

general emissyste:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

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