valve float

[draginmopars]

interesting video-

spring bounce, spring rotate and valve wobble

[ame="https://www.youtube.com/watch?v=_REQ1PUM0rY"]Valve Float - YouTube[/ame]

 

[Cudafever]

and a eng with no valve springs...


[ame="https://www.youtube.com/watch?v=GXIdOTkJhEY"]Springless Valvetrain For Push Rod Engines! - YouTube[/ame]

 

[1968FormulaS340]

Crazy stuff.