Cylinder head with rocker arms, red arrow marking a threaded por…

Close-up of a bare cylinder head on a bench, showing pedestal-mounted rocker arms and an oil-feed rail, with a hand-drawn red arrow pointing to a threaded port at the end of the head. A second head with polished dished combustion chambers lies in front of it and a tire sits at top; date-stamped 09/15/2007.

AI caption October 2007 · Photo 59 of 68