I just finished doing some work on my 66 SS, finished throwing it all together, and was looking forward to a good ole night on the town. I threw on the heads, torqued them down, did everything, then I started her up to adjust the rockers, WHEN, I noticed I wasn't getting any oil up through the rods!Now, I checked the oil pump, and 1st prob. was the shaft was missing. oops, must have fallen out. replaced that, primed the system, and tried again. STILL no oil up top. my oil press. gauge was disabled due to header clearance (a prob. I plan on fixing soon) where the line feeds out of he block. Oil flowed like mad out the hole when primed or cranked, so I am getting pressure... I looked through the oil channel on the heads into the valley, oil flowed quite well through there... but not up to the top! now to answer questions I can see coming right now. Yes, they are hollow rods, and yes, they are clean. I have Crane hydraulic lifters (could by some freak accident, all of them collapsed and are not letting any oil up??). I need heeeelp! my baby needs to see the road again!!!