Big Improvement To A Chevy
Looks like maybe a turbo? Don't see the hair dryer, rear mount maybe? Strange combo. If it is a turbo, the guy took the hard road, so much easier/cheaper to build a turbo SBC. Don't see many turbo BBMs. Looks like a "Farm truck" kind of thing but super low budget. If it is boosted and it works, it probably flies.
I can just see the comments now - "Why waste a good engine in a crappy Chevy".