I'm wondering if anyone would happen to know how much an oldsmobile rocket motor would be worth. It's a 1967 425ci Rocket motor... It's been gone through from top to bottom. New pistons, fresh heads, new bearings and rings, crankshaft turned, and I do believe it was balanced and blueprinted. Any help would be great! Thanks

Probably not worth as much as you have into it. Any old car part is worth only what someone is willing to pay for it. Have you searched on places like craigslist, or any of the antique car/ parts magazines or web sites?