Automotive engine valves The ceramic component which attracted most attention so far is he automotive engine valve. ... no problems with the vehicles on the road , rning cost s )ned above, agt;owclers with reasonable costs when scaling up production as .ell as the ability to ... 1 1 . K.D. Morgenthaler, Ceramic Valves - A Challenge?, 6th Int. Symp. on Ceramic Materials aamp; Components for Engines ( 1997), anbsp;...