Big Block OR Small Block 727????

Big block has four bolts holding inspection cover small block has 2. For me that's the easiest way to tell.

That "NAILED IT", it's big block!! Great, now I'll just go pick it up.....but one more thing, I've read about certain 727s that come in motor homes that require a special yoke and it won't work on a car very well. How do I know it's not one of those???

Treblig