Exactly how often do you warp a head?

[Littlestan]

It's extremely rare for that to happen on a engine that is running properly.

As in, it's never been close to the overheating point. Once the temperature of

your engine reaches a critical point, you can and WILL melt, burn, or warp

metal pieces that are not designed for such tolerances. Heads that are cast

iron will reach that critical point faster than aluminum one's since it cannot

dissipate the heat quickly enough.

Hope that helps,

-=Littlestan=-