Arnolt valve and side covers. Arnolt brochure.
For those who like fins on a valve cover, here is a brand new item for the under-bood area. Also of polished aluminum, it is heavy enough to deaden all but the wildest tappets
For the clean engine enthusiast, here is a buffed aluminum rocker-arm cover that silences the valves considerably and dresses up the engine
Inside it is stamped "X29"
VALVE COVER IS ALUMINUM WITH DORETTI AND SPORT CAR WRITTEN ON THE SIDE OF VALVE COVER.
H-C Products
AL valve cover of unknown Australian origin.