Hi. I am from Australia and have a 2003 LS1 CV8 Monaro (GTO to you guys) and i'm interested in fitting a mega death cam to it. But my main concern is the high lift. I'm not sure if our LS1's are different to yours but i'm worried about the valves and pistons becoming rather familiar with each other.

What do i have to do to fit one of these cams?