My daughter-in-law recently felt that my old age would be improved by reducing the number of boxes in the garage.
All "The Knobbly Bars" were put in one box.
The knobbly bar in question's 1/2" inlet lobes have a lift of .259" and the .265" exhaust lobes are more lumpy that the inlet.
The oil pump drive slot has been cut through a lightly stamped "370??A" and then badly stamped with "KCLGC 10230". there is also "10042" stamped in small figures.