Alloy heads

Hi guys,

I have been considering alloy heads for some decrease in weight over the front of my AP6. I am looking at doing some other things like alloy rad and fab up and alloy ancillary mount, but I want to know if the heads on the market are durable enough for some weekend track work. I currently have a nice set of ported heads, so it's not like I am looking for engine performance, just weight reduction. The last thing I want to do is make the old bus unreliable.

And apologies if this has been covered before. Feel free to link me to some threads if you know of any.

Regards,

Rob
Oz.