1947 Indy Roadster
No, not the DFV, nor the later turbo’d V8s. It’s a Cossie Vega motor..in a ’40s-vintage roadster originally fitted with an Offenhauser.
The performance might be disappointing.
That said, this could be a fun project, though nearly everything is likely hand-fabricated. Make sure you own a machine shop.
It’s on eBay in New Jersey.