O-rings question

[Capinoy123]

Well i plan on hitting somewhere in the 700hp range next year and i just want to do everything right the first time. I just herd good things about O-ringing the motor. So i thought i might try it out but who knows my plans are never final. My tune is great, i just overheated the motor a while back and the head has just never sealed right since! I'm putting compression in my cooling system, when i drive home from work i pop the hood and you can feel my upper radiator hose.. rock solid! Im just checking out my options..