Anybody know if Mitsubishi 4g63t valves will fit a tib? And is anyone getting valve float after boosting their car?

 

valve float should only happen when ever revving an engine or when your valvetrain is weak/worn.

 

The stock valves are like $10 each, new - why bother with parts from a different engine unless they are something special . . . ?

 

Cause there's a good chance they are stronger since they are made for a boosted engine vs our stock ones made for NA, also the 4G63T engine being much more popular for aftermarket parts then if they do fit there's also a good chance that upgrade ones for that engine would be cheaper than upgraded ones for our engine.

 

They won't work. Valve float can also happen when boost pressure is too much for the stock springs. The pressure can actually keep the valve from closing all the way. Upgrading the spring fixes that.