Larry, You forgot to tell them that the aluminum heads don't crack as easy.
Warp, well now that's a different question.
Crash
>The two basic benefits of the aluminum head are less weight and better heat
>dissipation allowing you to run higher compression.
>
>The weight probably would only matter to a racer.
>
>Other benefits over a stock head would depend on the valves and how the
head
>flows. It is probably an improvement of a stock head but from what I've
been
>told, the APT head flows better.
>
>I have the Pierce head but only have a couple of hundred miles since
>installation.
>
>Larry Miller
>
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