ford 2300 dport head 1.89 intake valves 1.59 exhaust valves s.s double valve springs cromoly retainers head is set up to take .570 lift close chamber head milled .120 i think has plenty of clean up big bowl blend and inake port smothing head screams up to 8100 get it with solid schinder cam and fallowers for 550 without 400 plus shipping call or txt for pics 53- 513 4306