depends on the condition, if its running but not rebuilt then its about $1000, if its actually been recently rebuilt and such then yes your could get $3500 for it.... i'd love that engine for my 69 galaxie convertable, but i dont have that kind of money at the minute, i spun a bearing in my 66 mustang last night, so now i gotta tear that down and rebuild it, and i'm thinking of getting a 347 stroker kit for it