There were at least 2 different size clutch discs used with 216 engines.

The flywheel used one clutch size.

A car could be ordered with a 216 and a larger truck-type flywheel/clutch-disc (same flywheels and clutch discs - cars and trucks).

If I am wrong, we'll hear about it.

Here is info for 1946 and 1952 (as examples):

http://chevy.oldcarmanualproject.com/chevyresto/52037.html
http://chevy.oldcarmanualproject.com/chevyresto/52151.html

http://chevy.oldcarmanualproject.com/chevyresto/4639.htm
http://chevy.oldcarmanualproject.com/chevyresto/4688.htm

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.