1966 Ford GT40 Engine Internals
Keep Your 1966 Ford GT40 in Top Shape with Quality Engine Internals
Whether you’re repairing or upgrading your Engine Internal, using high-quality parts is key to keeping your 1966 Ford GT40 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Crankshaft Seals, Connecting Rod Bolts and Nuts, and Crankshaft Bolts. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1966 Ford GT40 Engine Internal at Advance Auto Parts is around $29.65, with a range that starts at $1.79 and goes up to $77.99. With 6 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Multi-Purpose Seal, For Use With Ford Small Block 289/ 302 Cid, 2 Bolt Main, Hex Head, Chrome Moly, and For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" – 18 Thread Size start at just $13.49 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Engine Internal, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Ford GT40 in peak condition, inside and out.
Find Your Specific 1966 Ford GT40 Engine Internals
Looking for the perfect Engine Internal for your 1966 Ford GT40? You’re in the right place. Below, you’ll find links to various types of Engine Internals that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Internals, ensuring durability and a precise fit for your Ford GT40. Whether you’re driving a 1966 model or another popular model year like
1964,
1965,
1967,
1968, and
1969, we’ve got you covered. Purchasing Engine Internals from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Internals that fit your vehicle.
Essential 1966 Ford GT40 Engine Internals
Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)
from
$1.79
This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
Product Features:
See More
Product Features:
- Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
- Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
ARP Auto Racing – For Use With Ford Small Block 289/ 302 Cid, 2 Bolt Main, Hex Head, Chrome Moly (Part No.154-5001)
from
$77.99
Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under-head radius and rolled threads for the utmost reliability. The threads are rolled after heat-treating, which makes them about 2000 Percent longer fatigue life than most main bolts, which are threaded prior to heat-treating.
Product Features:
See More
Product Features:
- Forged From Premium Grade 8740 Chrome Moly Steel
- Generous Under Head Radius And Rolled Threads For The Utmost Reliability
- Reduced Wrenching Head
- Designed To Meet The Exacting Standards And Demands Of Professional Engine Builders
- 2-Bolt Main
- Front or Rear Sump
- Includes Oil Pickup Standoff Bolt
- 180,000 PSI
ARP Auto Racing – For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" – 18 Thread Size (Part No.150-2501)
from
$38.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 Pounds Per Square Inch bolts that let you exert maximum clamping force. Special features comes with 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.
Product Features:
See More
Product Features:
- Ultra Strong Bolt Rated At 200,000 Pounds Per Square Inch
- Professional Quality Fasteners
- Delivers ARP Quality And Reliability
- Made In USA
- 2.05″ Underhead Length
- Ford 289-460 (except 351C)
- Sold Individually
- 200,000 PSI
National – Multi-Purpose Seal (Part No.2942)
from
$13.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
Felpro – Engine Crankshaft Seal Kit (Part No.BS 30136)
from
$18.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Application specific design to ensure a perfect fit
- Meets or exceeds all original equipment specifications
- Engineered and manufactured specifically for repair applications
- Unsurpassed quality you can trust
- Validated for fit, form, and function
National – Engine Crankshaft Seal (Part No.5108)
from
$33.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: split-lip; 2-piece
- Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
- Good low temperature capability
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
Popular 1966 Ford GT40 Engine Internals Categories
Most Popular Crankshaft Seals for 1966 Ford GT40s
Enhance your 1966 Ford GT40 with one of the 3 Crankshaft Seals we have in stock, starting at just $13.49.
Felpro – Engine Crankshaft Seal Kit (Part No.BS 30136)
from
$18.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
Product Features:
- Application specific design to ensure a perfect fit
- Meets or exceeds all original equipment specifications
- Engineered and manufactured specifically for repair applications
- Unsurpassed quality you can trust
- Validated for fit, form, and function
National – Multi-Purpose Seal (Part No.2942)
from
$13.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
National – Engine Crankshaft Seal (Part No.5108)
from
$33.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: split-lip; 2-piece
- Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
- Good low temperature capability
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
Best-Selling 1966 Ford GT40 Connecting Rod Bolts and Nut
Upgrade your GT40 with our best-selling Connecting Rod Bolts and Nut.
Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)
from
$1.79
This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
Product Features:
See More
Product Features:
- Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
- Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Top-Quality Crankshaft Bolts for 1966 Ford GT40s
Choose a high-quality OEM or aftermarket Crankshaft Bolt for Ford GT40s and enjoy top-notch performance from $38.99.
ARP Auto Racing – For Use With Ford Small Block 289/ 302 Cid, 2 Bolt Main, Hex Head, Chrome Moly (Part No.154-5001)
from
$77.99
Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under-head radius and rolled threads for the utmost reliability. The threads are rolled after heat-treating, which makes them about 2000 Percent longer fatigue life than most main bolts, which are threaded prior to heat-treating.
Product Features:
See More
Product Features:
- Forged From Premium Grade 8740 Chrome Moly Steel
- Generous Under Head Radius And Rolled Threads For The Utmost Reliability
- Reduced Wrenching Head
- Designed To Meet The Exacting Standards And Demands Of Professional Engine Builders
- 2-Bolt Main
- Front or Rear Sump
- Includes Oil Pickup Standoff Bolt
- 180,000 PSI
ARP Auto Racing – For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" – 18 Thread Size (Part No.150-2501)
from
$38.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 Pounds Per Square Inch bolts that let you exert maximum clamping force. Special features comes with 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.
Product Features:
See More
Product Features:
- Ultra Strong Bolt Rated At 200,000 Pounds Per Square Inch
- Professional Quality Fasteners
- Delivers ARP Quality And Reliability
- Made In USA
- 2.05″ Underhead Length
- Ford 289-460 (except 351C)
- Sold Individually
- 200,000 PSI
FAQs for 1966 Ford GT40 Engine Internals
What are the best-selling Engine Internals for 1966 Ford GT40s?
Out of 6 Engine Internals that fit 1966 Ford GT40s, the following parts are the top sellers:
- Multi-Purpose Seal (3267776) – $13.49
- For Use With Ford Small Block 289/ 302 Cid, 2 Bolt Main, Hex Head, Chrome Moly (11530155) – $77.99
- For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" – 18 Thread Size (11530126) – $38.99
What’s the price range for 1966 Ford GT40 Engine Internals?
The prices of Engine Internals for the 1966 Ford GT40 range from $1.79 up to $77.99 for the most premium parts.
What is the average price of an Engine Internal for a 1966 Ford GT40?
The average price for Engine Internals for the 1966 Ford GT40 is $29.65. Keep in mind the variety of part types within our Engine Internal category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Engine Internals for other Ford GT40 model years?
What are the cheapest Engine Internals for my 1966 Ford GT40?
The cheapest 1966 Ford GT40 Engine Internals we carry are:
- Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (22148959) – $1.79
- Multi-Purpose Seal (3267776) – $13.49
- Engine Crankshaft Seal Kit (5183006) – $18.99
- Engine Crankshaft Seal (18444542) – $33.49
- For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" – 18 Thread Size (11530126) – $38.99
Does Advance Auto Parts sell Engine Internals for any other 1966 Ford models?
Yes. We stock Engine Internals for 21 other popular 1966 Ford models. Some of the most popular are 1966 Mustang Engine Internals, 1966 Thunderbird Engine Internals, 1966 Bronco Engine Internals, 1966 Country Squire Engine Internals, and 1966 LTD Engine Internals.
What are the top-rated Engine Internals that fit the 1966 Ford GT40?
The one 1966 Ford GT40 Engine Internal we have in stock is the Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each). It costs $1.79.
What types of Engine Internals do you sell for my 1966 Ford GT40?
As of 11/2/25, these are some of the most in-demand types of Engine Internals for a 1966 Ford GT40:
Can I get help with 1966 Ford GT40 Engine Internal orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Ford Engine Internals and more.
What is your return policy for Ford GT40 Engine Internals?
Advance Auto Parts keeps returns simple. For new Ford GT40 Engine Internals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.