So I'm hangin out bench racing with this guy tonite and he tells me he has a Kieth Black Donovan Hemi 417 c.i. I start having a brain fade about them. So I was guessing it's a redone aluminum 392 c.i. set up. So what's the real deal on these. He wants to sell it. It came out of a pickle fork boat. Has KB pistons he says too. He says he wants 10 grand for it. Tells me there's a finder fee for me if I find a buyer. So any info could help. I could use the $.