I have a 74 f100 with a 302 and a c4 auto. I've had tons of problems with the motor overheating and other issues. I recently bought a 85 Lincon Town Car that has a carbed 302. Now the dizzy looks a little different and the belt set up looks like it is two smaller versions of serpentine belts. Also the car has a/c, which I DO NOT plan on trying to get in the truck. My questions are, 1-will this be a drop in swap? 2-Could the trans possibly work also?(not sure what the car has yet)3- If its not a drop and go swap, what will I need to do to get it to work, belts, brackets, mounts, etc. The motor in the car doesn't have a drop of oil leaking nor does it burn any. It's only got 60,000 miles on the motor. Please help, any info, tips, or tricks will be appreciated. Thank everyone who chimes in.

 

It will work if you use all the accessories off the truck for sure. They should just swap right over. The car most likely has an AOD which could be made to work but I am not sure about the crossmember, and I think you need a shorter drive shaft. You will need a new flex plate for the town car engine if you want to use the C-4 the 74 302 will have a 28oz counter weight and the 85 will have a 50oz you will need to get a flex plate with the 50oz imbalance for a C-4 or it will shake it self to death.
-Johnboy

 

The car definatley does not have over drive, gear selector shows PRND21. And if I use the truck c4 how do I get a flexplate with a 50oz Imabalance for a c4. I've never bought something like that and don't really know what to ask for I guess. Thanks again.

 

You will need to find out if you have a 157 tooth or a 164 tooth, from what I found there is a difference depending on if your engine has a one pice or two pice rear main. I would check summit racing mabey give them a call and they can look up which one you need. I would find out what is on the motor in the truck and the car for sure there is a chance the one in the car will work with the trucks transmission too since it doesn't have OD.
-Johnboy

 

My bad, drove the car home today. It does have overdrive. Also it has a ton of electronic crap plugged into the carb. Should I be able to just use the truck carb or will I have to change entire intakes? Oh, and can distributors swap to?

 

why couldn't he just take the flex plate off the 74 and put it on the 85 and then use the c-4 tourqe convertor and c-4 tranny? Isn't the flexplate and tourqe converter balanced to the tranny? or is the flexplate balanced to the engine and the tourqe converter balanced to the tranny?

 

Isn't that an EFI 302? I think that is a different intake but I'm not sure. I'm sure someone will clarify.

 

The flex plate carries all the imbalance for the engine, the torque converter is zero balanced and has nothing to do with the engines imbalance.
-Johnboy

 

pretty sure its carbed but if I find my dam camera I will post some pics for reference. Thanks for all the input so far people, I do appreciate it.

 

i see, wasn't sure how they did that.

 

Definitely don't use the old 74 flexplate with the 85 302 motor. Like JohnBoy said, use a flexplate w/ the 50oz counterweight. The other difference between older 302s and post 82's is that the waterpump in the newer engine rotates the opposite direction w/ serpentine belts. If you use the original bracketry, get an older waterpump. I'm thinking that the 85 that looks like it has a carburator w/ electrical connections is really TBI injection (Throttle Body Injection). You'll probably have to replace the intake manifold with one for a carb. Otherwise you need all the computer sensors, computer O2 sensor, and high pressure fuel pump and return line from the Lincoln. I believe that the engine balance on the 302 is BOTH the damper and the weighted flexplate/flywheel. When getting a flexplate, the ring gear needs to be the right diameter for the bellhousing used. Truck bellhousings used a larger diameter than cars. Relocating the transmisson crossmember and having a driveline shortened are pretty simple in 2wd trucks in case you want to reuse the Lincoln transmission. Just find out whether the AOD needs a computer to run.

 

You are correct that the balancers are different too but you should just be able to bolt the older pulley to the balancer that is already on the 85, no need to even take it off.
-Johnboy

 

The lincoln motor does run a 50 oz. 164 tooth flexplate. You might get lucky and have a large bell c4 164 tooth in your truck instead of a small 157. If so the lincoln flexplate will bolt right up. But if it was my truck I'd swap the aod in too. Lokar cable sells a kick down cable for these transmissions that works great with a carb. Aod trannys all use a mechanical valve body up to 93? then switched to aode which was a half and half with electric OD I think. I've never had one apart yet. Then it was re-designed again into a 4r70w which is full electric with a lower ratio internal gears and a 2" wide OD band. The only minor issues I can think of would be the transmission mount and driveshaft lenght. I'd drop the motor and tranny in all toghether, then bolt the motor down and see what you need for the transmission mount.

 

This is 2wd I'm assuming. I swapped in a small block (non stock) C6 into my 76 F100 along with a 302 prior to the 390 that I have now. The tailshaft of the C6 was significantly longer than the 3sp that had proceeded it in my truck. I think the C6 had originally been a Van transmission. The crossmember was no big deal. The transmission mount was the same between the two transmissions as well as the current T18 I have. I used the same crossmember, and let it sit on the inner frame rails. It located the crossmember a few inches to the rear, and I just drilled new bolt holes when I saw where the crossmember needed to rest. I had a driveline shop shorten my driveline and put the correct slipyoke on the end of the front half. I used to drive an 89 Camaro that had throttle body injection on a 305 and it was a completely dependable. If you can save the computer and figure out how to get the higher pressure fuel delivered to the injectors, it might be worthwhile as a more refined setup than a carburetor. I find that my carburetors are somewhat cold blooded until good and warmed up. Rough running at first with icing in the venturis until the engine is thoroughly warm. I don't ever have that kind of thing with fuel injection. If you could get all the computer sensors, computer and fuel lines right with the Lincoln engine and induction, you might be rewarded with good turnkey driveability.