I unfortunatley have never had the pleasure of looking a SR20DET cylinder head(*sobs*). How good are they, do they need work to reduce hotspots? All edges radiused,good blending, no unengaged sparkplug threads??? If you guys cannot already tell, A BB swap is hopefully in my future. My goal is 300whp..for now. I'm just wondering how much and what has to be done to the engine(not talking turbo size..yet) to obtaing this goal.