1. Truck-Car Air & Fuel Delivery Offers
  2. sku: 10708729966768641
  3. FORD C7AZ-6766-A

FORD C7AZ-6766-A Cookie Cutter Breather Cap

fits model: Gt-500, 427, Shelby. make: Ford.

C7az-6766-a Ford Original 67 Shelby Gt-500 427 Chrome Cookie Cutter Breather Cap

( Manufacturer Part Number: C7AZ-6766-A ), ( Part Type: Cutter Breather Cap ), ( Material: Steel ), ( Vintage Part: Yes ), ( Universal Fitment: No ), ( Country/region Of Manufacture: United States )

Review FORD Original 67 Chrome Cookie Cutter Breather Cap fits SHELBY GT-500 427

Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap

Description:

This Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap is an essential upgrade for any classic car enthusiast or collector who owns a 1967 Ford Shelby GT-500 427. Designed to perfectly complement the distinctive look of this iconic muscle car, this breather cap is a must-have for those seeking authenticity and performance enhancement.

The cap is crafted from high-quality, durable materials, ensuring it withstands the test of time. Its design closely resembles the original "cookie cutter" breather caps used on the 1965 and 1966 Ford Shelby GT350 and GT350R models. However, this breather cap is specifically engineered for the larger 427 cubic inch engine found in the 1967 Shelby GT-500.

Installation of this breather cap is a straightforward process. It replaces the factory air cleaner lid, providing a more visually appealing appearance while enhancing the airflow to the engine. The cap's design allows for better ventilation, helping to keep the engine bay cooler and drier, which is essential for optimal engine performance.

The Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap is not just an aesthetic upgrade; it also contributes to improved engine performance by ensuring that the engine receives a consistent supply of clean air. By allowing excess crankcase gases to escape, this breather cap contributes to a healthier engine by preventing the build-up of harmful gases within the crankcase.

This breather cap is a perfect addition to any restoration project or for those who simply want to enhance the appearance of their Shelby GT-500. Its high-quality construction and authentic design make it an excellent investment for any serious collector or enthusiast.

In summary, this Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap is a valuable addition to your classic muscle car, offering both aesthetic and performance benefits. Its durable construction, authentic design, and easy installation make it a worthwhile investment for any Shelby GT-500 owner.

Pros and Cons of Buying a Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap

Introduction:

The Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap is a performance upgrade for the classic Shelby GT-500 427 engine. This cap is designed to improve the engine's breathing and overall performance. In this analysis, we will discuss the pros and cons of investing in this breather cap.

Pros:

1. Improved Airflow: The main advantage of this breather cap is the increased airflow it provides to the engine. This results in better combustion, increased power, and improved engine efficiency.

2. Enhanced Performance: By reducing the pressure inside the intake manifold, the breather cap allows the engine to breathe more easily during high RPMs, leading to enhanced performance and improved throttle response.

3. Improved Sound: The breather cap also contributes to the iconic Shelby GT-500 exhaust note by allowing more vacuum to be created in the intake manifold, resulting in a louder and more aggressive engine sound.

4. Easy Installation: Installing the breather cap is a relatively straightforward process, making it an attractive option for both professional mechanics and DIY enthusiasts.

Cons:

1. Cost: The Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap is a premium upgrade, and its price tag may be a deterrent for some buyers.

2. Limited Compatibility: This breather cap is specifically designed for the 1967 Shelby GT-500 427 engine, making it less versatile than other performance upgrades.

3. Potential for Leaks: The breather cap is made of rubber, making it susceptible to leaks over time. Regular maintenance and inspections are necessary to ensure the cap remains effective.

Conclusion:

The Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap offers several advantages, such as improved airflow, enhanced performance, and a more aggressive engine sound. However, it also comes with some disadvantages, including its cost, limited compatibility, and potential for leaks. Ultimately, the decision to invest in this breather cap depends on an individual's budget, priorities, and the specific requirements of their Shelby GT-500 427 engine.

Recommendation:

If you're a Shelby GT-500 427 enthusiast looking for a significant performance upgrade and don't mind the cost, the Ford C7AX-6766-A 67 Shelby GT-500 427 Cookie Cutter Breather Cap could be an excellent investment. However, if you're on a budget or prefer a more versatile performance upgrade, there may be other options worth considering. Regardless of your choice, always make sure to follow proper installation procedures and perform regular maintenance to ensure the longevity and effectiveness of your performance upgrade.

Details:

ORIGINAL 67 FORD SHELBY GT-500 427 CHROME COOKIE CUTTER BREATHER CAP C7AZ-6766-A, VERY RARE OEM PART, The Ford part number for the breather cap you are looking at is a C7AZ-6766-A. These caps, however are black not chrome. Very early C7AZ-6766-A caps did not utilize the Auto lite script. Most C7AZ-6766-A oil breather caps were Auto lite script.

This breather was also used on '67 427ci Fair lanes and Comets.

part #: c7az6766 prices

  • $64.80-$2500.00

specifications airfueldepo:

  • for models: Gt-500, 427, Shelby
  • for makes: Ford
  • mpn: C7az-6766-a
  • part type: Cutter Breather Cap
  • material: Steel
  • vintage part: Yes
  • universal fitment: No
  • country/region of manufacture: United States

seller airfueldepo:

  • rating: 100.0%
  • # reviews: 1169
  • city: Fairfax, Iowa

offer airfueldepo:

  • options: Ship-to-home
  • started: October 1, 2025
  • quantity: 1
  • sold: 0
  • availability: In Stock

general airfueldepo:

  • condition: Used
  • Car Truck Parts Accessories > Air Fuel Delivery > Other Air Fuel Delivery

shipping airfueldepo:

  • class: Standard
  • carrier: USPS
  • cost: $85.00
  • type: Fixed
  • service: USPS Ground Advantage
  • transit: 3-7 Days

returns airfueldepo:

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

payments airfueldepo:

  • wallet: Paypal
  • other
  • credit card: Diners-club
for models: gt-500, 427, shelby, for makes: ford, part type: cutter breather cap, vintage part: yes, universal fitment: no, country/region of manufacture: united states,
category: auto parts > car truck parts accessories > air fuel delivery, material: steel, sku: 10708729966768641,

Ford C7AZ-6766 Is Similar To:

airfueldepo logo
5 offers $64.80–$2500.00 USD
  • Offer #1: $2500.00 price + $85.00 shipping estimate = $2585.00* total. The -A cap is a rather rare item. The Ford part number for the breather cap you are looking at is a -A.+$85.00 shipping
  • Offer #2: $74.80 price + $8.00 shipping estimate = $82.80* total. Thanks storage 3US New in box please view pics.+$8.00 shipping
  • Offer #3: $64.80 price + $8.00 shipping estimate = $72.80* total.+$8.00 shipping
  • Offer #4: $22.00 price + $18.15 shipping estimate = $40.15* total. C5SZ-14526-B CIRCUIT BREAKER. FDA-18195D VALVE SHUTOFF.+$18.15 shipping
  • Offer #5: $20.00 price + $4.63 shipping estimate = $24.63* total.+$4.63 shipping

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