sentences:  The L-head had an alloy crankcase, a single iron casting for each cylinder block and head, side valves, a flat-plane crankshaft and a displacement of .An electric starter motor was used, eliminating the large engines being difficult to start with hand-cranking.The Cadillac engine was followed by a V8 model from Peerless (using an engine manufactured by an amusement park manufacturer) in 1915.