Ford 300 Modifications
Posted: Wed Apr 12, 2017 7:30 pm
Hello all,
I have a 1985 Ford F250 with the 300CID inline 6 engine. The truck itself is sitting around right now and waiting until I have the time, money and space to work on it. The engine is sitting on a stand and most of the long block is stripped off. I plan to start working on the truck in about the next year but have decided that I would like to start working on my engine plans in the near future. I don't have dreams of major power in this truck but would like to do something that I think is quite unique and would make a great learning experience and story. I would love to fab it up with an HX35 turbo and EFI.
Soon I will be pulling the head off the engine and checking out the internals to ensure that everything is clean. The engine has about 150k miles on it but that's pretty low for a 300. I want to get the whole engine cleaned up and ready to start working with. I know a good place to start is with simply checking and replacing old components such as the water pump, switching to steel timing gears, etc. However, I know very little about what I would need to run the turbo and EFI. I believe the EFI system would make it a lot easier in the end to run the turbo and would add that edge of uniqueness. Physically adding the turbo should also be pretty straight forward.
So, the part where I really need help. I want to run a full multi-port injection system. Later years of the 300 featured MPFI systems, Speed Density for several years and MAF for a couple, so it is possible to get the components from another engine and install them on mine. The issue is that these components include two halves of an intake manifold and the EFI head. I know any year 300 head flows pretty poorly so a rebuild of the head is in line. This will most likely lead to porting the head and reseating for some larger valves. I'll have to delete the mechanical fuel pump and run an electronic pump to support EFI. The information that I'm looking for is whether or not the old EFI components would be a good place to start or if I should go for full custom fab on it as well as what other components I will need. I would like to start plotting out what I will need to do this to make it easier to do later.
If possible, I think it would be run a coil near plug ignition system but I don't know it would be implemented. I plan on getting an MS3-pro to run the system but I need to know what else would be needed. So I'm open to suggestions on what I should get for anything else including ignitions systems, sensors, and whatever else may go into a system.
I have a 1985 Ford F250 with the 300CID inline 6 engine. The truck itself is sitting around right now and waiting until I have the time, money and space to work on it. The engine is sitting on a stand and most of the long block is stripped off. I plan to start working on the truck in about the next year but have decided that I would like to start working on my engine plans in the near future. I don't have dreams of major power in this truck but would like to do something that I think is quite unique and would make a great learning experience and story. I would love to fab it up with an HX35 turbo and EFI.
Soon I will be pulling the head off the engine and checking out the internals to ensure that everything is clean. The engine has about 150k miles on it but that's pretty low for a 300. I want to get the whole engine cleaned up and ready to start working with. I know a good place to start is with simply checking and replacing old components such as the water pump, switching to steel timing gears, etc. However, I know very little about what I would need to run the turbo and EFI. I believe the EFI system would make it a lot easier in the end to run the turbo and would add that edge of uniqueness. Physically adding the turbo should also be pretty straight forward.
So, the part where I really need help. I want to run a full multi-port injection system. Later years of the 300 featured MPFI systems, Speed Density for several years and MAF for a couple, so it is possible to get the components from another engine and install them on mine. The issue is that these components include two halves of an intake manifold and the EFI head. I know any year 300 head flows pretty poorly so a rebuild of the head is in line. This will most likely lead to porting the head and reseating for some larger valves. I'll have to delete the mechanical fuel pump and run an electronic pump to support EFI. The information that I'm looking for is whether or not the old EFI components would be a good place to start or if I should go for full custom fab on it as well as what other components I will need. I would like to start plotting out what I will need to do this to make it easier to do later.
If possible, I think it would be run a coil near plug ignition system but I don't know it would be implemented. I plan on getting an MS3-pro to run the system but I need to know what else would be needed. So I'm open to suggestions on what I should get for anything else including ignitions systems, sensors, and whatever else may go into a system.