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Our first test 4 valve, normally aspirated, air-cooled, 6 cylinder engine coming together. Nothing has been done to make it particularly "pretty" or lightweight as it is only for bench testing. If it works, many things can be done to reduce weight, to
increase power, to quicken spool up and to make it look good.
Brief Update: The supplier machining the head castings was backed up with aerospace work. As a result, we are now approximately one months behind my last estimate.