wich is the diference between the n/a valves from the turbo valves? and where i can find a turbo valves for my dohc?

 

i think it is only the exhaust valves that are changed to deal with the extra heat of the turbo. i could be wrong but i think that is the only difference so if you arent going to be turbocharging you engine theres not point in changing out the valves. as were to find them i dunno try the good old google. i like to use their shopping section its usually more trustworthy.

 

I know on the older motors the ones with the intake in the back had bigger exhaust valves. If you want to get better valves look at Brian Crower, they have a set stock size and +1mm bigger, plus they have better springs and retainers as well.