I just finished going over my parts stash, but Hoyt beat me to it...
55-62 235/261 flywheels are indeed 168 tooth and have the same outer dimensions as a 168 tooth V8 flywheel, BUT the V8 has a different size bolt pattern, only one dowel pin instead of three, and the center hole is larger.
So no, a V8 flywheel can not be used "as is" on any 216/235/261 engine.
As to what bellhousing to use, that depends on what you are planning to use the engine in. Give me an idea of what you're going to do with it and I can be more specific...
As to the starter, any '55-62 12 volt starter for a 235/261 will work. If you want a solenoid starter, look at any 55-62 car. If you want to go with a foot starter, try a 55-57 truck.
I have a 3705410 flywheel, and it is a 12 volt era 235/261 for an 11" clutch and 6 bolt pressure plate.
