iron vs aluminum
 

besides weights savings...is there really any other difference in perforamce from a set of good iron heads compared to aluminum

RE: iron vs aluminum
 

yea, they run cooler too

RE: iron vs aluminum
 

Out side of those 2 facts I can't think of any real advantages to Aluminum from a performance standpoint....

RE: iron vs aluminum
 

Yeah, easier to install you damn near pull a back muscle dropping e-7's in!

RE: iron vs aluminum
 

no kidding on that one. but weight savings is another good benefit considering how much u have to pay for them

RE: iron vs aluminum
 

Not exactly ikey. Aluminum tends to hold a good bit of heat, and since aluminum is not as dense as iron it moves easyer. thats why aluminum heads are prone to warping.

RE: iron vs aluminum
 

also aluminum heads can absorb more heat as someone said before but this also helps you to run more timing and prevent pinging

RE: iron vs aluminum
 

Aluminum heats up and cools faster than cast.

RE: iron vs aluminum
 

You can run more timing with less octane.

RE: iron vs aluminum
 

this is interesting...
http://www.chevyhiperformance.com/techarticles/83858/