amshafts model case Built-up, forged and cast camshafts. Camshafts for 4-, 5-, 6-cylinder engines. Camshafts for four-valve engines. Camshafts for flat engines. Cut-away cams. Various camshaft bearings. description ordernumber 1188 see also: Mercedes-Benz cylinder head M 270 with camtronic camshaft adjustment, Porsche side-valve 4-stroke engine with timing wheel cylinder head four-valve mechanism