Would it be bad or not ok to run stainless steel exhaust valves and OEM intake valves? I dont really have the cash to replace perfectly ok intake valves. I am just wondering because I need to replace some exhaust valves and im not sure what to do.

 

That is not a problem at all. Just make sure you get a good valvejob on both sides. An aftermarket valve isn't anywhere close to ready for install out of the package.

Be sure to check for cracked guides. Nearly every 4G head I get has a couple cracked guides.