These are New STG1se heads, they are complete with stg1 plus 11/32 valves 2.160/1.755, combustion chambers are 68 cc's, TA1125 Valve springs, Keepers, retainers and locators, Viton seals, I will set spring pressures to match your cam if you want no extra charge. They flow 340/235 @ .600 $2995 plus shipping.