Inliners International Forums General Discussion Engines HOT 4 BANGERS,..WHO'S RUNNING THEM?? Show of hands!!

I found a '28 Chevrolet four engine at a swap meet. Does anyone know if it is supposed to have a big piece of oil-saturated felt over the rocker arms, under the valve cover? About 1/2 x 3 x 12 inches. This one does. Engine is complete with clutch.