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After a busy couple of weeks, I'm back to Special D. Despite my earlier panic and confusion about the engine, you guys hit it on the head with stuck valves. I've finally got my intake and exhaust headers off and am trying to get the valves freed up. I was lucky with almost all of the bolts. One bolt had threads screwed up with the nut coming off (galled?) and I'm going to have to replace that. Most had 'dry rust' on the threads and squeaked coming out, but nothing totally frozen. Bolt on the tail end of the exhaust header was apparently broken in the past and there was just one bolt in place. Interesting. There were also only three bolts in the heat riser, as apparently one was broken off in there. I'll have to see if I can Easy Out those. Several questions . . . The valve access panel inside the right fender well . . . Is this thing supposed to slide out relatively easily? It seems to have a hole in the upper/forward corner of the panel, that a bolt goes through. The back side of the bolt WOULD be accessible, in a car without a heater. Without a slot there, I have not been able to get it out. So it's 'rolled' forward, toward the bumper. The stuck valves . . . Is it common/expected that it's the INTAKE valves that are the ones that are stuck? Here's #6, #5, & #4 And here's #3, #2 & #1 I'm spraying "PB Penetrating Catalyst" on the the upper end of the valves/guides in hope of freeing them. Is there any tapping or prying I can do on the lower end of the valve stems? I squirted Marvel Mystery Oil in the plug holes last Saturday and ran it through several revolutions; most of that seems to have ended up in the intake header. Header bolts . . . How do you back one of those out of the block to replace it? Vice grips and crank on it? Heat riser is frozen and I'm trying to work on that while I'm at it. More penetrating oil. I've been alternating PB, Marvel and some scraping and tapping. Spring is good. Little 'bell shaped' washer that keeps it from rotating on the shaft is a goner. Have to see what I can fabricate. Thanks again for the help. Cheers! John