2 Big Block Questions

Okay, somebody please school me...

1) 413 engine. Trucks only? Any cars that came with this engine? Do they make good motors for street cars/weekend drivers?

2) 440 RV engine. I've been seeing a bunch, in my local area, for sale cheap. Like really cheap. All the ads make a point of calling out that it was in an RV. Can this be a decent street car motor?

Thanks
for members who love history, the Facel Vega car used 413.