Looking to possibly sell these heads because I got boosted and had to get another set to bring compression down. These heads are milled correct to 57cc, have dual valve cover bolt pattern, standard length 2.08/1.60 valves, guide plates, and 7/16 studs. The springs, seals, retainers, and locks were transferred to my new heads so they aren't included. They have about 6000 miles on them and have been resurfaced to make sure they aren't warped. Asking $1500 shipped to the lower 48. I'll let them go cheaper if you come pick up. I paid $2400