So, you're thinking about giving your classic 1959 Ford F100 a new lease on life with an engine swap? Awesome! This is a fantastic project that can dramatically improve your truck's performance, reliability, and even fuel economy, depending on what you choose. But before you dive in headfirst, let's break down everything you need to consider to make this swap a success. We're talking planning, engine selection, parts, and the actual nitty-gritty of getting that new powerplant purring in your vintage ride.

Planning Your 1959 Ford F100 Engine Swap

Planning is paramount when undertaking an engine swap on a classic truck like a 1959 Ford F100. You can't just yank out the old engine and expect a new one to magically fit. A good plan covers all the bases, saving you time, money, and a whole lot of frustration. Here's what needs to be on your radar:

• Define Your Goals: What do you want to achieve with this swap? More power for towing? Better fuel economy for daily driving? Or maybe just modern reliability? Knowing your goals will heavily influence your engine choice.
• Budget, Budget, Budget: Engine swaps can get expensive quickly. Set a realistic budget that includes the engine, transmission (if needed), any necessary adapters, new wiring, cooling system upgrades, and unforeseen expenses. Always pad your budget for the unexpected.
• Research, Research, Research: Dive deep into online forums, read articles, and talk to other F100 owners who have done similar swaps. Learn from their experiences and avoid common pitfalls.
• Assess Your Skills: Be honest about your mechanical abilities. Engine swaps can be complex. If you're not comfortable with certain aspects, consider enlisting the help of a professional mechanic.
• Check Local Regulations: Some areas have emissions regulations that might affect your engine choice. Make sure your planned swap is legal in your location.

Choosing the right engine is a critical decision that will significantly impact the outcome of your project. The original engine in your 1959 F100 was likely a Ford inline-six or a small-block V8, both of which have their charm but might not meet modern performance expectations. Several popular engine swap options could breathe new life into your classic truck. Small-block Ford V8s remain a popular choice due to their reliability, affordability, and readily available parts. The 302 and 351 Windsor engines are common choices, offering a good balance of power and ease of installation. For those seeking modern performance, the Ford Coyote 5.0L V8 is a game-changer, but it requires more extensive modifications. If you're looking for a blend of classic charm and modern technology, consider a Ford EcoBoost engine. These turbocharged engines offer impressive power and fuel efficiency. Consider engine size and weight to avoid overwhelming the front suspension and affecting handling. Research the dimensions of potential engines and compare them to the original engine bay. Check the availability of aftermarket parts and support for your chosen engine. Some engines have a larger aftermarket, making it easier to find performance upgrades and replacement parts.

Selecting the Right Engine for Your 1959 Ford F100

Engine Selection is arguably the most crucial decision in your F100 engine swap journey. The engine you choose dictates the level of performance, the complexity of the installation, and the overall cost of the project. Let's explore some popular options:

• Classic Ford Small Block (302/351 Windsor): These are tried-and-true options. They're relatively affordable, parts are plentiful, and they offer a significant power boost over the original engines. Plus, they fit reasonably well in the F100's engine bay.
• Ford Coyote 5.0L: This modern marvel offers impressive horsepower and torque. However, be prepared for more extensive modifications, including custom headers, wiring harness adaptations, and potentially even chassis modifications.
• Ford EcoBoost (2.3L/3.5L): These turbocharged engines provide a great blend of power and fuel efficiency. They're also relatively compact, making them a good fit for the F100. However, they require more complex wiring and tuning.
• LS Swap (GM LS Engines): While not a Ford engine, the GM LS series is incredibly popular for swaps due to its compact size, lightweight, and readily available performance parts. Adapting it to your F100 will require conversion kits.

When deciding, think about what you'll primarily use your truck for. If it's mainly cruising and light hauling, a well-built 302 or 351 might be perfect. If you crave modern performance and plan on doing some serious towing, the Coyote or EcoBoost could be the way to go. For those seeking a different flavor with ample aftermarket support, the LS swap is worth considering. Don't underestimate the importance of the transmission. Your existing transmission likely won't bolt up to the new engine. You'll need to choose a transmission that's compatible with your engine and can handle the increased power. Consider factors like gear ratios, overdrive, and electronic controls when making your selection. The driveshaft may need to be modified or replaced to match the new transmission. Take accurate measurements and consult with a driveshaft specialist to ensure proper fitment and balance.

Gathering the Necessary Parts

Once you've settled on your engine, gathering the necessary parts becomes the next critical step. This goes far beyond just the engine itself. You'll need to consider everything from engine mounts to wiring harnesses to cooling system components. This stage can be overwhelming, but a detailed list will keep you organized and prevent frustrating delays down the road.

• Engine Mounts: Your new engine likely won't bolt directly to the F100's existing mounts. You'll need adapter plates or custom-fabricated mounts. Several companies offer swap-specific engine mount kits for the F100.
• Transmission Adapter: If you're keeping your existing transmission, you'll need an adapter plate to mate it to the new engine. Make sure the adapter is designed for your specific engine and transmission combination.
• Wiring Harness: This is crucial for integrating the new engine's electronics with your F100's electrical system. You can either modify your existing harness or purchase a standalone harness designed for your engine swap.
• Cooling System: Upgrading your cooling system is essential, especially if you're adding a more powerful engine. Consider a larger radiator, electric fans, and high-flow water pump.
• Fuel System: Your existing fuel system might not be adequate for the new engine's fuel demands. You might need a higher-capacity fuel pump, new fuel lines, and an adjustable fuel pressure regulator.
• Exhaust System: Custom headers and a complete exhaust system will be necessary to optimize performance and sound. Several companies offer F100-specific exhaust systems designed for common engine swaps.
• Gauges: Ensure your existing gauges are compatible with the new engine. If not, you might need to install aftermarket gauges to monitor vital engine parameters.
• Driveshaft: The length of your driveshaft may need to be adjusted to accommodate the new engine and transmission combination.

When selecting parts, prioritize quality and compatibility. Cheap parts can lead to headaches down the road. Research reputable brands and read reviews before making your purchases. Don't forget about the small stuff! Nuts, bolts, hoses, clamps, and fluids all add up. Create a comprehensive list and make sure you have everything you need before you start tearing things apart.

The Engine Swap Process: Step-by-Step

Alright, guys, time to get our hands dirty! With your plan in place, your engine chosen, and your parts gathered, it's time to tackle the engine swap process itself. Remember, safety first! Always disconnect the battery before working on any electrical components, and use jack stands to support the truck securely.

1. Preparation: Disconnect the battery, drain all fluids (oil, coolant, transmission fluid), and remove the hood. Disconnect all wiring and hoses connected to the old engine.
2. Remove the Old Engine: Carefully disconnect the engine from the transmission and mounts. Use an engine hoist to lift the engine out of the engine bay. Take your time and be careful not to damage any surrounding components.
3. Clean and Prep the Engine Bay: Thoroughly clean the engine bay and remove any unnecessary brackets or components. Repair any rust or damage before proceeding.
4. Install New Engine Mounts: Install the new engine mounts or adapter plates onto the frame. Ensure they are properly aligned and securely fastened.
5. Install the New Engine: Carefully lower the new engine into the engine bay using the engine hoist. Align the engine with the mounts and bolt it into place. Double-check all connections and clearances.
6. Connect the Transmission: Mate the transmission to the engine, ensuring proper alignment and secure bolting. Install the driveshaft and check for proper fitment.
7. Wiring and Plumbing: Connect the wiring harness, fuel lines, and coolant hoses. Pay close attention to the wiring diagram and ensure all connections are secure and properly insulated.
8. Cooling System Installation: Install the radiator, fans, and coolant hoses. Fill the cooling system with the appropriate coolant.
9. Exhaust System Installation: Install the headers and exhaust system, ensuring proper sealing and clearance.
10. Initial Startup: Before starting the engine, double-check all connections and fluid levels. Turn the key and listen for any unusual noises. If everything sounds good, start the engine and let it idle for a few minutes. Monitor the gauges for any signs of trouble.

Take your time and don't rush the process. Double-check everything as you go, and don't be afraid to ask for help if you get stuck. The wiring can be especially tricky, so take extra care when connecting the wiring harness. Use a multimeter to verify connections and ensure proper voltage. Pay attention to detail to avoid costly mistakes. Small errors can lead to big problems down the road.

Final Touches and Troubleshooting

Congratulations, you've (hopefully!) got your new engine purring in your 1959 Ford F100! But the job's not quite done yet. Final touches and troubleshooting are crucial to ensure your swap is reliable and enjoyable.

• Check for Leaks: Carefully inspect all fluid connections (oil, coolant, fuel) for leaks. Tighten any loose fittings and repair any leaks immediately.
• Tune the Engine: Depending on your engine choice, you might need to tune the engine for optimal performance. This could involve adjusting the carburetor, programming the fuel injection system, or installing a custom tune.
• Test Drive: Take your F100 for a test drive and pay attention to how it performs. Check for any unusual noises, vibrations, or handling issues.
• Troubleshooting: Be prepared to troubleshoot any issues that arise. Common problems include overheating, poor performance, and electrical issues. Use a diagnostic scanner to check for error codes and consult online forums for solutions.

Don't be discouraged if you encounter problems. Engine swaps are complex projects, and it's normal to have a few hiccups along the way. Patience and persistence are key. Recheck your work, consult with experts, and don't give up! Now that you have completed this task, consider upgrading other parts of your car. Now is the perfect opportunity to upgrade your brakes, suspension, and tires to handle the increased power and improve the overall driving experience.

By following these steps and paying attention to detail, you can successfully swap the engine in your 1959 Ford F100 and enjoy the benefits of a more powerful, reliable, and modern powerplant. Happy wrenching! Good luck, and enjoy the ride!