I’m in the middle of that very conversion. I have an 87 4x4 that I’m installing a 1991 302 Cobra motor. The conversion has not been that hard, just very time consuming. Here are a few things I have had to do and I’m sure several other things will pop up before it’s completed.
1. Motor mounts – I bought a set from James Duff. Putting them in was not as easy as ready the directions and drilling new holes. We ended up spending a lot of time figuring out where the mounts needed to go. So people make there own.
2. Transmission – I encourage you to talk to several people and figure out what you want.
3. Oil relocating system – Make sure you get the right one. There are some that mount to the engine and the out and in ports face out like the oil filter. These usually don’t work due to the power steering box. You will need to order the one with its ports pointing towards the radiator. You can get one of these from James Duff or Advance Adapters.
4. Duel sump oil pan - If the back drain plug on the oil pan is on the drive side you will need to either relocate the plug to the passenger side of the pan or grind down the I-beam drop bracket.
5. If using headers – The only ones I know that fit are the ones from James Duff. Those are the ones I bought and are installed. There are a few things you’ll need to do to make them work. Move the gas line filer, if the bell housing is for a manual 167 tooth flywheel the passenger side header needs you to grind down a few of the splins on the bell housing to make a nice fit.
6. I bought a radiator from James Duff and it fits very nicely. I might be able to get a fan in there. If not electric fans might be required.
7. 2” lift – Highly recommend a 2” to 3: body lift. You will still have to cut the heater box a little and bang in the tunnel to make room for the bell housing and headers.
8. Electric – I haven’t gotten that far but it depends if you’re using a fuel injected or carburetor motor. Mine is carbureted so I’m assuming a lot of wires will be able to go.
9. Drive shafts – I’m having the rear one shortened and the front one lengthened to fit. This will depend on what transmission you go with.
10. Cross member for transmission – This depend on what transmission you use. You might need to talk to a lot of other people and figure out what transmission is right for you.
11. Shifter location – If using a manual you might need to cut the hole in the cab for the new shift and the 4x4 shifter. It all depends on what transmission you go with.
12. Speedometer – You might have to get a longer one, but this all depends on what transmission and transfer case you use. Keep it in mind.
Those are a few things I have ran into so far. Like I said it’s not real hard, just takes some time due to little things. Every conversion is different. Here are a few links to help you out.
Here are some photos of my swap in progress. Maybe some of the photos will help
http://www.therangerstation.com/forums/album.php?u=23001
Do a lot of research. Here are a few links to help you get started.
http://www.jamesduff.com/broncoII/v8conversion.html
http://www.advanceadapters.com/
http://www.mre-books.com/ranger.html
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