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How To Engine Swap | Dropping a Coyote Motor in a Ford F-100

Chris Hamilton . January 10, 2020 . F100 Builders
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Every brand has fans, and all of them have a motor enthusiasts want to stuff under the hood. For Dodge guys it’s a Hemi, and for Chevy guys, it’s usually an LS. But when it comes to Fords, it’s all about the Coyote. There are lots of reasons why. It’s a 5.0L engine that Ford has been building in one form or another since 1968, which gives it history. It offers rock-solid performance and reliability, and there are tons of options for improvements should you want to go even faster.

Basically, it’s a great power plant for the money, which is why many F100 owners decide on one to get their trucks down the road. The problem is that it seems like it’s difficult to install. There’s the wiring and computer to worry about; plus, can you even keep the front suspension stock? So many questions.

Jason Noel and the team at Fat Fender Garage not only know the Coyote well, but they have a ton of F-100 knowledge. They know these trucks inside and out, which is why they bought a ’71 F100 with the intention of swap a Coyote into it.

The goal here was a little different from the norm, though. They wanted to keep the stock power steering box and front suspension, and make it as affordable an option as possible so that everyone can do it.

To make this setup happen for yourself, you can buy a Coyote with a 6R80 package directly from Ford, but it comes with a very steep price tag. On top of that, you’ll have to pay extra for essential components like a driveshaft, headers and accessory drive system. All of these parts can dramatically raise the cost of an already pricey package.

In this story, Fat Fender Garage shows how to do the swap on a more modest budget. Keeping the price tag down, you can acquire a low-mileage Coyote/6R80 driveline combo from a 2011-present Mustang GT. Though you can pull one from an F-150, the Mustang GT version has more power and the stock headers will fit the frame rails of an F-100. We’ve seen these packages sold in local salvage yards for around $6,500-8,500, which is more affordable than buying new.

To that end, Fat Fender Garage developed a series of mounts that allows customers to drop a Coyote into their very own trucks worry-free. Not only does it locate the engine in the correct place, it does the same for the transmission, making the installation go a lot smoother. If you want info on the other parts and pieces they used to get it moving, they can help you out there, too. Give them a call, because they’re the experts, after all. 

But before you do, take a peek at this swap of a Coyote engine in their ’71 F100. It’s a beast. 

Source:

Fat Fender Garage
1385 N. Recker Rd.
Gilbert, AZ 85234
480-621-6072

Fatfendergarage.com
Instagram.com/fatfendergarage/
Facebook.com/fatfendergarageaz/

Here’s the truck in its more-or-less original form, complete with a worn-out V-8. The Fat Fender team is going to fix that problem.
To free up some room, the hood came off first and was placed in a safe area.
With the grille and core support removed, there was plenty of room to remove the engine.
Fat Fender Garage sells a complete adapter kit for these trucks, too. It includes engine and transmission mounts for a perfect fit. This saves a bunch of time on an installation like this one.
Fat Fender uses a Power by the Hour Performance kit that allows you to mount a transmission cooler and shift linkage to the automatic transmission to ease the installation process.
To ensure that the truck would function well, the team added power brakes to the system, plus they rebuilt the power steering box.
With the fenders removed for a little bit of extra breathing room, the team set the motor into the frame for the first time. This Coyote/6R80 combo came from a 2013 Mustang GT that had only 59,000 miles on it.
The stock transmission tunnel isn’t big enough to handle the 6R80. To make it work, the team did a bit of trimming.
Fortunately, the high transmission hump from a manual or 4×4 transmission does provide enough clearance, so installing one will give you a factory appearance.
Here are the Fat Fender Garage engine mount adapters up close and personal. They make the process much easier.
The driver’s side Mustang GT header will clear the factory power steering box, and a small heatshield slips between the two for protection.
The passenger-side header needed a bit of work to fit. Fortunately, it’s not a lot, just a bit of grinding on the top of the frame.
The transmission cooler was positioned under the passenger side floorboard for a stealthy look that’s functional.
The transmission cooler uses a few spacers to provide the best airflow possible.
SoCal Speedshop in Phoenix provided the high-output electric fan, and it fit perfectly with the radiator in the core support.
A Ford Mustang has electric power steering. It takes a kit, like this one from KRC, to convert it to work for the F-100.
Installed, the KRC kit looks clean and simple.
The KRC kit includes a remote reservoir that was mounted to the radiator.
To keep things simple, they used the stock engine and transmission harness and a standalone power harness from Power by the Hour. This also meant that the computer needed to be located low and up front.
The Power by the Hour harness includes the power block and relays for the fan, which they mounted under the dash.
Fabricating the custom intake tube took a little planning and forethought. A breather port was welded in place, as well as an MAF bung on the underside.
The easiest part of the entire process was installing the accelerator pedal. One of the bolts even lined up with a hole in the firewall.
The fuel for the system is stored in a new Tanks Inc. fuel tank. It includes baffles and an intake fuel pump that works with the Coyote.
Here’s the finished product. The cold-air intake needs to be powder-coated and a few other details worked out, but it runs and is good to go.

FREQUENTLY ASKED QUESTIONS

How can I ensure proper lubrication and oil flow in a F100 coyote engine swap?

Ensuring Proper Lubrication and Oil Flow in a F100 coyote engine swap

When performing a F100 coyote engine swap, ensuring proper lubrication and consistent oil flow is crucial to prevent engine damage. Here are a few steps you can take to achieve this:

Install a Remote Oil Filter

One effective method to maintain optimal oil circulation is to install a remote oil filter. A remote-oil-filter adapter allows you to relocate the filter away from the engine, providing easier access and potentially freeing up space for other components.

Use Universal Remote-Filter Kits

For many vehicles, universal remote-filter kits are readily available at most automotive speed shops. These kits come with all the necessary fittings and hoses to reroute the oil flow efficiently.

Opt for Right-Angle Adapters

If you are working on a specific engine type, such as a small-block Mopar, a right-angle adapter might be necessary. This adapter helps you navigate around obstructions like headers, ensuring that the oil filter remains easily accessible and that oil flow is not compromised.

Tips for Installation
  • Check Compatibility: Always make sure that the remote filter kit or adapter is compatible with your engine model.
  • Secure Fittings: Ensure all fittings are tightly secured to avoid leaks.
  • Use High-Quality Hoses: Opt for hoses that can withstand high temperatures and pressures to prevent deterioration.
Final Checks

After installation, double-check all connections and run the engine to ensure there are no leaks. Regularly monitor oil pressure and oil levels to promptly address any issues that may arise.

By following these guidelines, you can effectively manage your oil system during a F100 coyote engine swap, ensuring your engine runs smoothly and efficiently.

 

How can I modify a driveshaft for a F100 coyote engine swap?

When you perform a F100 coyote engine swap, you will likely need to modify your driveshaft to match the new setup. Typically, this requires altering the length of the driveshaft to accommodate the different dimensions of the new transmission.

Here’s a step-by-step guide to modifying a driveshaft for a F100 coyote engine swap:

Steps to Modify a Driveshaft
  1. Measure the Driveshaft:
    • Determine the correct length needed by measuring the distance from the end of the new transmission to the rear differential. Precise measurements are crucial for proper alignment and performance.
  2. Remove the Driveshaft:
    • Detach the existing driveshaft from the vehicle. Be careful to mark the orientation before removal to ensure it is reinstalled correctly.
  3. Determine the Modification Type:
    • Decide whether the driveshaft needs to be lengthened or shortened. This decision will be based on your initial measurements.
  4. Choose a Modification Method:
    • If you don’t have access to a local shop, you can send the driveshaft to an industrial service provider that specializes in modifications. There are several companies that offer mail-in services for driveshaft modifications, ensuring accurate and reliable adjustments.
  5. Reinstall the Driveshaft:
    • Once the driveshaft has been modified to the correct length, reinstall it in the vehicle. Ensure all connections are secure and properly aligned to avoid vibrations and wear.
Tips for Successful Modification
  • Double-Check Measurements: Incorrect measurements can lead to significant issues, including drivetrain misalignment and vibrations.
  • Consult a Professional: If you are unsure of the process, seeking help from a professional can save time and prevent potential damage.
  • Test Thoroughly: After reinstalling the driveshaft, take the vehicle for a test drive to ensure everything is functioning smoothly.

By following these steps, you can modify a driveshaft effectively for your coyote engine swap, ensuring your vehicle runs optimally with its new setup.

 

What are the challenges and solutions for cooling systems in engine swaps?

The Challenges and Solutions for Cooling Systems in Engine Swaps

When undertaking an engine swap, one of the significant challenges is ensuring proper cooling. The new engine configuration often requires adjustments to maintain optimal temperature and prevent overheating. Here are some common challenges and effective solutions for cooling systems during engine swaps.

Challenges
  1. Clearance Issues:
  • The new engine might occupy more space, leading to insufficient clearance between the radiator and the motor. This can hinder airflow and reduce cooling efficiency.
  1. Incompatibility with Existing Components:
  • The original cooling components might not be suitable for the new engine, leading to inefficiencies or failure.
  1. Overheating Risks:
  • A more powerful engine generates more heat, which the existing cooling system may not handle effectively, risking engine damage.
Solutions
  1. Utilize Electric Fans:
  • Replacing engine-driven fans with electric fans can save space and improve cooling efficiency. Electric fans are more adaptable and can be mounted in various positions to suit the new engine setup.
  1. Upgrade Water Pumps:
  • Installing a high-performance water pump with an integral electric drive can enhance coolant flow and maintain optimal engine temperatures. Various third-party manufacturers offer water pumps tailored for different engines, ensuring compatibility and improved performance.
  1. External Drives for Non-Compatible Engines:
  • For non-Chevy engines, consider using external drive systems. These setups drive the water pump independently, offering more flexibility in engine configurations without compromising cooling efficiency.
  1. Integrated Water Pump/Distributor Drives:
  • Advanced solutions like integrated water pump/distributor drives are available for specific engine types, combining essential cooling and ignition functions into one compact unit. This can significantly reduce space constraints and streamline the engine bay.
Conclusion

In summary, ensuring adequate cooling during an engine swap involves addressing clearance issues, upgrading components, and leveraging advanced solutions like electric fans and high-performance water pumps. By carefully selecting and integrating these elements, you can effectively manage the heat generated by the new engine and maintain reliable performance.

 

How can I relocate the battery to the trunk safely during an engine swap?

How to Safely Relocate the Battery to the Trunk During an Engine Swap

Relocating the battery to the trunk can enhance your vehicle’s weight distribution and free up engine compartment space. However, safety is paramount during this process, especially to prevent electrical issues and hazards. Here’s how you can manage this safely:

1. Use a Battery Relocation Kit:
  • Invest in a quality battery relocation kit designed for your vehicle. These kits typically include all necessary components like cables, connectors, and a battery box.
  • Ensure that the kit you choose addresses common issues such as hard-starting problems associated with remote batteries.
2. Proper Cable Routing:
  • Route the battery cable through the interior of the car rather than along the chassis to avoid exposure to heat and potential damage.
  • Use grommets and insulation at every point where the cable passes through metal to prevent abrasion and shorts.
3. Install a Battery Box and Mounting Bracket:
  • Secure the battery within a heavy-duty, vented battery box to contain any potential leaks and provide additional protection.
  • Use a sturdy mounting bracket to anchor the battery box firmly to the trunk floor. This ensures it stays in place even during sharp turns and hard accelerations.
4. Ground Connection:
  • Establish a solid ground connection between the battery and the car’s chassis. This can be achieved by sanding down to bare metal at the grounding point and using a robust ground strap or cable.
5. Safety Precautions:
  • Avoid running a live, unprotected cable along the length of the car, which poses a significant fire risk. Instead, use insulated cables and add protective conduit where necessary.
    • Install a battery cutoff switch to help isolate the electrical system for maintenance or in case of an emergency.
6. Regular Maintenance:
  • Regularly inspect the battery connections and cables for any signs of wear, damage, or corrosion. Clean and retighten as needed to maintain a solid electrical connection.

By following these steps, you can successfully relocate your battery to the trunk during an engine swap, enhancing both performance and safety in your vehicle.

 

What transmission adapters are available for various engine swaps?

Transmission Adapters for Various Engine Swaps

When it comes to engine swaps, having the right transmission adapter can simplify the process significantly. Here are some options for adapters that can help you pair nearly any automatic transmission with a variety of engines.

Types of Adapters Available
  1. Adapters for Powerglide, TH350, and TH400:
    • These adapters allow you to fit Powerglide, TH350, and TH400 transmissions behind both small-block and big-block engines from Ford and Mopar.
    • They are also compatible with early Hemis and Donovan engines, making them highly versatile.
  2. TH700-R4 Overdrive Automatics:
    • If you’re looking for a TH700-R4 overdrive automatic, specialized adapters are available.
    • These can be used to fit the transmission behind a range of engines including small-block Fords and small-block Mopars.
  3. Adapters for Ford C4 Transmissions:
    • Adapters for the Ford C4 transmission enable it to fit not just Ford engines but also Chevy, Oldsmobile, Pontiac, and Buick engines, as well as the 272, 292, and 312 cubic inch Ford Y-block engines.
    • These adapters make the already compact C4 even more adaptable, fitting into tight spaces where other transmissions may not. They can also be tailored with a short tailshaft to make the C4 even shorter.
    • Additionally, these solutions allow for pairing the C4 with classic flathead Ford engines and efforts are ongoing to develop adapters for late-model four- and five-speed manual transmissions to fit behind flatheads.
  4. TorqueFlite and Mopar Four-Speed:
    • Another set of adapters is designed to fit TorqueFlite and Mopar four-speed transmissions behind early Hemi engines, expanding the possibilities for Mopar enthusiasts looking to modernize their powertrains.

Using these adapters can make your engine swap project smoother and more efficient, providing the flexibility to mix and match engines and transmissions to achieve the desired performance and fit for your vehicle. Whether you’re modernizing a classic car or building a custom hot rod, these adapters offer reliable solutions to bridge the gap between different engine and transmission types.

 

What types of transmission dipsticks are available for F100 coyote engine swaps?

Types of Transmission Dipsticks for F100 Coyote Engine Swaps

When you’re tackling a F100 coyote engine swap, choosing the right transmission dipstick is crucial. Here are the main types available, each designed to address specific needs:

  1. Flexible Braided Line Dipsticks
    • These dipsticks are highly adaptable, featuring a flexible, braided line that can twist and turn to fit tight spaces. Ideal for custom setups where space is at a premium and conventional dipsticks just won’t fit.
  2. Billet Handle Dipsticks
    • Featuring sturdy, billet handles, these dipsticks offer durability and ease of use. They can be mounted in various locations, providing versatility and convenience.
  3. Extension Tube Dipsticks
    • For those needing a longer reach, extension tube dipsticks provide added length. They are perfect for configurations where the transmission is positioned further from the access point.
Benefits of Flexible Dipsticks
  • Adaptability: Can be maneuvered around engine components.
  • Ease of Installation: Suitable for complex engine/transmission combinations.
  • Durability: Often made from high-strength materials that resist wear and tear.
Key Considerations
  • Compatibility: Ensure the dipstick matches your transmission type.
  • Material: Look for materials that will withstand high temperatures and harsh conditions.
  • Mounting Options: Choose a dipstick that offers flexible mounting solutions for your specific setup.
Popular Third-Party Brands
  • Lokar: Known for high-quality, flexible dipsticks with billet handles.
  • Moroso: Offers a range of durable, reliable dipsticks for various applications.
  • Spectre: Known for affordable yet effective transmission dipstick solutions.

Choosing the right type of transmission dipstick can make all the difference in the success of your F100 coyote engine swap. Consider your specific needs, the space constraints of your setup, and the quality of materials to find the best fit.

 

What are the solutions if the engine interferes with the steering box installation?

Solutions for Engine Interference with Steering Box Installation

When your engine obstructs the steering box installation, there are several effective solutions to consider:

  1. Offset the Engine:
    • One practical approach is to shift the engine slightly towards the passenger’s side. This minor adjustment, often an inch or so, can provide the necessary space for the steering box without causing significant alignment issues. Automobile manufacturers have used this solution extensively in the past.
  2. Use Universal Joints:
    • If adjusting the engine position doesn’t suffice, installing universal joints in the steering column might help. These specialized joints allow flexibility in steering linkage, making it easier to navigate around obstacles without compromising functionality.
  3. Consider a Rack-and-Pinion Conversion:
    • For those who find it challenging to fit both the steering box and the engine within the same compartment, replacing the existing setup with a rack-and-pinion system could be a viable solution. Rack-and-pinion conversions are available from most major street-rod suppliers and can offer improved steering performance along with the needed clearance.
  4. Professional Assistance:
    • Consulting with professionals or reaching out to companies specializing in custom steering solutions can provide additional guidance and tailored components to address unique installation challenges.

Each of these strategies provides a path to resolving space conflicts between the engine and the steering box, ensuring a smooth and functional setup.

 

How can I recalibrate a power-steering pump to work with a mismatched steering gearbox?

How to Recalibrate a Power-Steering Pump for a Mismatched Steering Gearbox

Recalibrating a power-steering pump to work with a mismatched steering gearbox can simplify your swap process and eliminate the need for fabricating custom brackets. Here’s how you can do it:

  1. Identify Compatibility

First, determine if your existing power-steering pump can be recalibrated. Pumps from manufacturers like Ford, GM, and Chrysler can often be adjusted to fit a different steering gearbox.

  1. Seek Professional Assistance

Consult with a specialist in power-steering components. Companies such as Lee Manufacturing offer services to recalibrate power-steering pumps. Their expertise allows you to use the original pump from the car without needing extensive modifications.

  1. Obtain Necessary Fittings and Hoses

You’ll need the appropriate fittings to connect the power-steering pump to the mismatched gearbox. These specialists often provide custom fittings and instructions on how to create your own hoses, ensuring a secure and effective connection between the pump and the gearbox.

  1. Install and Test

Once recalibrated, install the power-steering pump and connect it to the steering gearbox using the new fittings and hoses. It’s crucial to test the setup thoroughly to ensure smooth and efficient power steering functionality.

Summary

By recalibrating your power-steering pump, you can avoid the hassle of fabricating new mounting brackets. With the right professional help and custom fittings, achieving a seamless integration between a mismatched pump and steering gearbox becomes a feasible task.

 

What should I consider when swapping EFI motors in terms of electronics and fuel systems?

What to Consider for EFI Motor Swaps
  1. Harness and Relays: Ensure the power block and relays, like the ones provided by Power by the Hour, are securely mounted, preferably under the dash for easy access and protection.
  2. Custom Intake Fabrication: Detailed planning is crucial. Welding a breather port and an MAF bung on the underside of the intake tube are steps that require precision.
  3. Fuel System Setup: Utilize a fuel tank, such as those from Tanks Inc., which includes baffles and an intake fuel pump compatible with your engine.

For a more thorough understanding, Mike Knell’s book provides step-by-step guidance, helping you navigate the complexities of EFI motor swaps. Whether it’s sorting out the wiring or selecting the best components, this resource ensures you’re well-prepared for every aspect of the process.

By integrating these detailed considerations and resources into your EFI motor swap project, you can achieve a smoother, more efficient installation.

 

What should I consider when dealing with power steering during an engine swap involving different makes?

The driver’s side Mustang GT header will clear the factory power steering box, and a small heatshield slips between the two for protection. A Ford Mustang has electric power steering. It takes a kit, like this one from KRC, to convert it to work for the F-100. Installed, the KRC kit looks clean and simple. The KRC kit includes a remote reservoir that was mounted to the radiator.

When dealing with power steering during an engine swap involving different makes, compatibility between the steering gearbox and the power-steering pump is crucial. It’s often less complicated if you don’t have to fabricate brackets to mount the pump that originally came with the car. Fortunately, there are solutions available. For instance, pumps from Ford, GM, or Chrysler can usually be recalibrated to work with a mismatched box. Additionally, fittings are available so you can create custom hoses to connect the pump to the box seamlessly.

This comprehensive approach ensures that your power steering system is both functional and reliable, regardless of the makes involved in your engine swap.

 

What are the general tips and tricks for engine swapping?

How To Engine Swap Dropping a Coyote Motor in a Ford F100

Every brand has fans, and all of them have a motor enthusiasts want to stuff under the hood. For Dodge guys it’s a Hemi, and for Chevy guys, it’s usually an LS. But when it comes to Fords, it’s all about the Coyote.

There are lots of reasons why. It’s a 5.0L engine that Ford has been building in one form or another since 1968, which gives it history. It offers rock-solid performance and reliability, and there are tons of options for improvements should you want to go even faster. Basically, it’s a great power plant for the money, which is why many F-100 owners decide on one to get their trucks down the road. The problem is that it seems like it’s difficult to install. There’s the wiring and computer to worry about; plus, can you even keep the front suspension stock? So many questions.

The Evolution and Popularity of Engine Swapping

Engine swapping has a rich history dating back to Henry Ford’s vision of universal interchangeability. This concept made early Ford models the first hot rods and set the stage for the engine-swapping culture that followed. Post-WWII, engine swaps gained momentum, and by the ’60s, they had become a staple in automotive customization. Historical examples abound, such as swapping a Corvair motor into a BMW or a Pontiac motor into a ’55-’57 Thunderbird. These swaps were often complex but showcased the ingenuity and determination of car enthusiasts.

General Tips for Engine Swapping
  1. Mindset and Preparation: The true swapper believes that “you can fit any motor into any car if you have the time, money, and patience.” This mindset is crucial. Even if it means building a full tube chassis, anything is possible with dedication.
  2. Research and Planning: Knowledge is power. Familiarize yourself with the specifications and requirements of both the engine and the vehicle. Detailed planning can save you from headaches down the road.
  3. Budget Considerations: Be prepared for costs beyond the initial engine purchase. Factor in additional components like mounts, wiring, and exhaust systems.
  4. Resources and Networking: Utilize forums, clubs, and online communities. The collective knowledge of fellow enthusiasts can provide invaluable tips and tricks.
Specific Example: Dropping a Coyote Motor in a Ford F-100

To make this setup happen for yourself, you can buy a Coyote with a 6R80 package directly from Ford, but it comes with a very steep price tag. On top of that, you’ll have to pay extra for essential components like a driveshaft, headers, and accessory drive system. All of these parts can dramatically raise the cost of an already pricey package.

In this story, Fat Fender Garage shows how to do the swap on a more modest budget. Keeping the price tag down, you can acquire a low-mileage Coyote/6R80 driveline combo from a 2011-present Mustang GT. Though you can pull one from an F-150, the Mustang GT version has more power and the stock headers will fit the frame rails of an F-100. We’ve seen these packages sold in local salvage yards for around $6,500-8,500, which is more affordable than buying new.

To that end, Fat Fender Garage developed a series of mounts that allows customers to drop a Coyote into their very own trucks worry-free. Not only does it locate the engine in the correct place, it does the same for the transmission, making the installation go a lot smoother. If you want info on the other parts and pieces they used to get it moving, they can help you out there, too. Give them a call, because they’re the experts, after all.

But before you do, take a peek at this installation of a Coyote engine in their ’71 F-100. It’s a beast.

Fat Fender Garage sells a complete adapter kit for these trucks, too. It includes engine and transmission mounts for a perfect fit. This saves a bunch of time on an installation like this one.

Conclusion

Whether you’re an enthusiast looking to drop a Coyote motor in a F100 or considering an entirely different engine swap, remember the timeless advice: with enough time, money, and patience, you can achieve your dream build. Drawing inspiration from the rich history of engine swaps and leveraging modern resources and products, you can turn any project into a roaring success.

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