While waiting for parts for the timing chain that I was working on while waiting for parts for the differential I was working on, I started working on the rest of the engine. I cleaned the push rod tubes and stretched them to insure a tight seal when installed. This was accomplished by putting a real snug fitting socket in the end of the tube, clamping it in a vise, and pulling and wiggling it to lengthen the bellows. This was done to both ends. The seals were then put on making sure the beveled end faces away from the tube as shown in the picture to the left. The tubes were installed in the block using small amount of oil on the seals to ease them into their holes. The other picture shows them installed. The head gasket was installed over the head studs and the head was put on the studs and and allowed to settle to the tops of the tubes. After double checking that the tubes were straight in the holes, the head was tapped into place with a rubber mallet. The head nuts were placed on the studs making sure the capped nuts were under the valve cover and the open nuts on the outside of same. I think this is to prevent oil leaks from the rocker arm area down the head studs to the block. The nuts were then torqued to 24 ft. lbs. using the pattern shown in the shop manual. Although it wasn't specified, I did it in incremental steps until I reached 24 ft. lbs. The rocker arm shaft assembly was placed over its mounting studs and the nuts torqued to 14 ft. lbs. I also replaced a few gaskets while fooling around: the distributor gasket, both fuel pump gaskets---hmmm only had one gasket on it, surprise surprise.