I was driving home from Indy to Chicago yesterday and saw these guys. They allowed pictures and turns out they are an active group called County Line Vans. They have been around since 1978.
The skull Chevy has a 350 Crate engine with 330 horsepower and glass packs. Sounds pretty nice. My van was in site, but no where near as interesting or clean.
It's a rare site to see a group of vans especially in the midwest. I heard vans are coming back, but thats more of a west coast scene.