1 set of pro-comp heads. these heads i bought new and put the good SS valves in. used them on my racecar for 2 years and took them off. the heads can be bolted on a block and used as they are now. they have new Hyd/solid springs installed. no studs or guide plates. heads have never been milled or ported buyer pays shipping. $700......... if your looking to make 600 HP or less these are perfect. chamber volume is 92cc.