https://fortcollins.craigslist.org/cto/d/fort-collins-buick-455-heads-intake-and/6848819596.html Buick 455 heads, intake and exhaust - $1 (Fort Collins) hide this posting image 5 of 5 © craigslist - Map data © OpenStreetMap 3019 Eastborough Dr. (google map) 1971 71' Buick 455 fuel: gas title status: clean transmission: other 71' Buick 455 factory heads, intake and exhaust manifolds. All you need is a block and a crank and you've got a big motor. I will gladly send more pics or find any stamped numbers you might want. show contact info