"Larger valves" refers to valves that are bigger in size compared to other valves. These valves are designed to allow a larger flow of liquid or gas through them. Full definition
The position of the lever converts the cam action into a smaller or larger valve lift, as requested by the engine management system. (autospeed.com)
GM had fitted the V8 with larger valves carried over from the previous Group A engine. (en.wikipedia.org)
Most are strictly build - to - suit, and would be difficult to sell for light manufacturing uses, though Clay says there's enough demand by firms that make pipelines and associated parts, such as large valves, to ensure that the buildings transact fairly easily in Houston. (nreionline.com)