The 1948 WR is one of the only years this racing model has a vertically mounted magneto (like a Sportster) and a generator block-off plate. The valves are "at angles" in the cylinders, tipped towards the bore. The tappet block bores are angled. The tappet blocks themselves are straight. The small feet on the tappets are angled, and made specific for each cam - the cam lobes are straight. Confused?
I bored these cylinders for the pop-up style pistons. Intake valves and seats are ground at 30 degrees for improved flow (I heard the Indian factory did this too) I ground the exhaust valves and seats at 45 degrees for longer life. Big ports on the WR cylinders !