Is it ok to have a 125cc head on with a 150cc piston and bore kit?

Is it ok to have a 125cc head on with a 150cc piston and bore kit?

 

you know, im not sure, this seems like a job for SUPER STEVE P!!!!!
i would check them against each other, sometimes the head sit a little down into the cylinder if that makes sense?

 

Check to see that the piston does,nt come out the top of the barrel (150cc), the 125 head will work but with a lot more compression, you could try two base gaskets. The Piaggio 190cc et4 barrel uses the std 125 head without any problems !

 

Thanks guys I've had the head on and it' works fine