have a set of 68 302 4v heads, they were made in november-(18 and 22) they are real close in production. they were just refurnished took .010 of them, installed hardened exhaust seats, have new positive valve seals, comes with valves, guide plates, everything you need basically and also have 1.6 crane roller rockers and pushrods (rockers will be extra) trade for 5.0 performance parts$300