Question for you horse power addicts

I was a t a buddies house last week, he does not boat or fish, he does build and race circle track cars though, anyway in his garage under a tarp I found a BRAND NEW Mercruiser 454, yes brand new, not rebuilt, it was bought at an auction at Century Boats and he traded some stuff for it, no out drive just the engine. Does anyone have an idea what this thing might be worth, he want to sell it and asked me for help. Skools, i bet you could shoe horn it into a V20 ;D