Bolt pattern – 80’s truck/van to ’78 B?

Hey all,
I picked up a set of the aluminum turbine type truck/van wheels with center caps at a local swap meet. I figured they might look good on my silver and blue SB Magnum. I figure if they don't fit, I can throw 'em on my table at the next meet. Anybody know offhand? Currently got a few snow banks between me and the car in a really late spring.
Author: Darlantan