After successfully swaping my crippled B18D for a B20E, the new motor is still smoking and running very hot. I'm pretty confused now. I can't think of anything I could have done wrong to cause the motor to blow so much smoke. It "seems" like it smokes more when the car is getting hot, but it's hard to tell as it's dark here.

The B20E was running very well when I extracted it from the donor. The 1800E didn't burn oil and didn't overheat - although it was totally covered in motor oil grime...

Here's what I did to the B20E.
I removed the manifolds, electronic sensors, valve cover, rocker, oil trap, and pushrods to prevent any damage during the actual extraction. I plugged the four injector ports with softplugs. After a thorough scrubbing, I painted the whole motor ford engine red.

I upgraded the front and rear seals to neoprene types. I removed the water pump, replaced the top seals and pump gasket and retorqued it back to the head. I used new gaskets everywhere I took something apart. I did not remove the head.

The only time I got into the engine was to drop the sump, pull the oil pump out partially, install a reinforcing ring, return the pump. I switched over to a B18-style oil pan, and made a minor modification to the pan so it would fit over the bigger B20 oil pump. I was very diligent about cleaning out the B18 pan before I installed it.

After the motor swap, I installed the SU carbs and combined manifold with a new gasket. I also dropped the electronic ignition and distributor from the B18 into the B20. I kept the B20's original thermostat, but replaced the rubber seal on it. I filled the motor with Mobil1 10W30 and tried to refill the radiator through the expansion tank.

This last part did not work so well, and I suspect that it has something to do with the overheating. Yesterday, I filled the expansion tank to the brim and left it for the water pump to siphon coolant into the motor.

After running the motor this evening, the car got really hot, but the coolant was not being sucked into the motor. I shut it down as soon as it got hot and went to check the coolant. This time, I lifted the expansion tank up and let the fluid drain into the radiator. I repeated until I had added more than a full gallon of mixed coolant to the motor.

The car had cooled to a reasonable level at that point, so I took it for a quick drive around the block. It quickly got very hot. I was also dumping a lot of smoke out the tail as I went.

When I returned home, the car dieseled for a bit before dying. It also did this when I ran it until hot before I forced more coolant into the engine.

I'm not sure what's going on here, but I'm very concerned that I screwed up somehere when preping this motor. I can't think what it could have been.

Any ideas what's going on here?

Except for the smoking and overheating, the engine is running very smooth, with the exception of some roughness at startup and some general uneveness due to the carbs not being adjusted for this car.

Also... I noticed that the rear bolt hole for the injector bracket was letting collant bubble up. I put the bracket bolts back in as a temporary solution.