I attacked the head next. I cut 1 from a piece of steel that we had, took it home and proceeded to machine it as per the ME drawings. I cut it as per the ME drawings. Guess what,
, the machining drawings were based on a 50mm square head, the cut drawings showed a 55mm x 50 mm head. I scrapped that 1 and cut 1 from 6061 Alum. In the parts pic attached you can see the steel head in the background.
I decided that since I was not using C.I. for the head, I should make up some brass inserts that would serve as the valve seats and guides. I made them a tight press/loktite fit into the head.
Seeing as I work on a RoushYates powered 360 c.i. Sprinter, I have access to some used titanium bolts now and then. I decided to try and make the valves from a couple of 1/4" dia Ti. bolts. I tried one and it works well.
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