Have a pair of 493 heads off a 76 500.. Motor ran good but prob need rebuild I suppose. A few broken exhaust studs in them.. I prefer not to ship them. .....free for pickup Also have a set of pistons and rods from same 500...... Free for pickup or free + shipping... Really dont want to scrap the stuff...im sure somebody could use them.. Guess it helps to,know where I'm located lol. I'm in northeast Ohio.