For the full blown race car that is looking for maximum performance , lighter weight , no worry of hanging a valve open due to a pumped up rocker this is it
more aggressive opening and closing of valves for max performance. Cars go through the rev range so much faster with the lighter weight valve train.
Requires custom camshaft for this application. Rockers and custom cam for $1300

 

 

Why do they require a custom cam?

 

because the ramp rates are different
you can open and close the valve quicker with mechanical

 

Works of art. Well done Jan.