One thing you must realize when installing larger valves in an overhead valve engine is that the big valves naturally take up more room in the combustion chamber and. therefore, will come closer ...

We may earn a commission from links on this page. On January 15 and 16, Valve is holding a special event. I'm not invited. You're probably not, either. It's called "Steam Developer Days," and it's ...

For example, a standard high-performance big-block Chevy 2-valve motor uses one 2.19-inch intake and one 1.88-inch exhaust valve per cylinder; these valve sizes have a circumferential window area ...