Engine swap

Without a doubt it would be a problem. Probably mods to the chassis with motor mounts. Maybe same to tranny. Now comes the fun part, the PCM for the newer vehicle and some wiring work plus all the EVAP components including solenoids, evap pump, etc. There is, I believe, sensors mounted on top of the fuel tank also. The fuel system, including the fuel tank, will have to be modified as to not allow any fuel vapors into the atmosphere. This will not be a drop in - plug in and go situation.

Thanks. I figured it would most likely be a headache. Didn't even think of some of the things you mentioned. Do you have a suggestion on how to gain more pulling power? Already put a small cam in and changed gear ratio from 3.55 to a 4.10. I'm not one of those that has a ton of money to spend and I really don't want to buy another truck.

The largest engine that was placed in that year pickup was the 5.8 V8. It has 11 more horsepower than your 5.0. Remember, the F 150 is a light duty pickup. Are you trying to tow more than than the maximum load rated for your vehicle? Even if it had all the bells and whistles available in the F 150? Some things you can do help out the truck are: Heavy duty tranny cooler and radiator. Free flow air intake and air filter. The free flow may add another 10 percent HP. You can upgrade the exhaust system. Suspension upgrade would also assist in stabilizing the vehicle. If you are to far North of your towing capacity, not much can be done to the F 150 to accomplish what you want safely. If you are towing heavy loads on a daily basis an upgrade to an F 250 may be your only alternative.

Yes, I am exceeding the capacity of the truck, but not all the time. I do tow a 10,000# rv with it occasionally. Most of the time just light weight things though. Thank you for the info.

Your 4.10 ration differential is correct for the load being towed. It's good getting the thing going out of the hole and passing up to about 60 miles per hour. After that, everything depends on horse power only. If the majority of the driving when hauling is at highway speed, you'll have to do a cost vs benefit analysis. Will the cost of an additional 10 percent in horse power (20) give you the bang for the buck? Personally, I don't think so. You'll never be zipping around a vehicle going 60 in the right lane unless you have an insane amount of HP.

You are thinking like me. I don't think that's enough hp to justify the money. Thanks for your answer.