74 block should have the 11 bolt timing cover. 68 and older had the 8 bolt. I have the oil drippers but my block came with them. I don't believe 74 block had them? My 68 did not have the windage tray but not sure about the newer blocks?
Speaking of oil pans and windage trays. Make sure your dip stick is compatible or get the right one. There are different varieties depending on year.
