[avbcon12]

for what its worth, i have the same mind set about aluminum heads on a street driven car. i didnt want to get them because they are more or less a 50,000 mile head. opposed to a cast iron that are more of a 100,000 mile head.

i went with the GT-40 irons because they would last on my application. it wont see much of a track and i didnt feel like tearing down the engine anytime soon (no money).

i also have worked at a metal fab shop for years now and knowing as much as i do about the different characteristics about metals (ie aluminum and iron) i couldnt see mating the 2 metals on a performance motor. the expansion a contraction rates of the 2 metals when heated are way way different. so i didnt want to deal with warping....

well i hope i at least helped a little. it comes down to knowing what the mustang is going to be used for. if its a daily driver or mostly street driven car then go iron if you dont want to hassle with it. if its a strip car every month then go aluminum.

take care,
adam