1-1968 Oldsmobile 455 for sale. Has c heads and long shaft th400. This engine has been sitting indoors for a long time. I'd guess moisture in the air got onto the cylinder wall and now she's stuck. Does not currently turn and is being sold as a core. 500.00 1-1968 Oldsmobile 455 with c heads. Does not turn. Not blown up. Sold as rebuildable core 500.00 Also have Oldsmobile 330, Oldsmobile 350 and Oldsmobile 425 engines engines are sold separately.