After some research, turns out that the lifter/valve assembly is from an 83 starion, which had longer valves to accommodate the mechanical lifters. The head should FINALLY be done today, which means I can actually get this thing on the road again this weekend. Time to prep the block for the new head and gasket- any tips? I've read to NOT use a scotchbrite pad, as many suggest, but to go with a razor and brake cleaner.