blue smoke at high rpm's

I just recently did a mini me swap (d16z6 head on d15b7 block) and at high RPM's it smokes blue smoke. I know blue smoke is oil, but i don't know why it does it. Can anyone help me out?

maybe head gasket... maybe rings.. mine does it too, but im not gonna fix it

My car was doing that too. I had bad piston rings. Got an entire new block for free out of it though.

do a compression test first but i thing its your head gasket,if u got low compression ,,,rebuilt it .....

i think the white smoke is oil. but the dark smoke is fuel but not compelet burn. so if dark somke that mean wrong in the electric circle
but if white smoke that mean wrong in the motor. i hope you get me.

piston rings or a bad valve seal.check your pcv valve too.