I am not sure about that exact van, but most motors are the same. A 350 is a V-8 motor. On the top of the engine, on the left and right sides, there are cam shaft covers. They look like very long bread pans turned upside down. In the middle of one of those, is a cap. That is where you add the oil to the motor.
gap is 42
Yes - probably a long time ago
7.3 liter diesel
no
No
I believe that its some where in side the vehicle, and if not its inside the engine area
I think it is next to the starter solenoid close to the battery.
15 quarts of 15w-40
Try Helm Inc. Just purchased 1990 eletrical spec for E 350. Haven't received yet but sounds like what I need.
L-98 350 cu. in.
The seats should be the same.
Aprox $500 parts and labor.