will it be cheaper and more efficent if i port my stock heads on my 5.0 or to buy aftermarket ones.. and is the difference going to be close or extremely different
extremely different - your saving alot of weight up front first of all (if aftermarkets are ALUMINUM) and your never gonna get the same flow out of those cast E7's as you will out of a set of Eddy RPM's or TF Twisted Wedges, or AFR's - do it right ONCE - go w/ aftermarket heads - and get a cam while your in there, cams are cheap - and you don't wanna hve to tear your motor apart more than once
It really depends on your goals: If you are doing a basic build and you would like some extra grunt, than by all means a set of ported stockers are probalby what you are looking for
If you want a car that is both, lighter and fast than maybe aluminum heads are for you.
My thing is this: When you open the hood, the car can look stock and still run like a raped ape if you set it up properly. You would still be able to fool a ton of people and compete in the stock classes. But again, it's up to you and your goals.
If you need help making your decisions you can ask these guys:
Yep.. it is what you want to end up with!! 12s on 700.00 or 12s on 1200.00 !! there are some good deals on USED heads on Ebay and these classifieds !! I feel after you make a killer deal on USED alum heads.. the machine work to make them up to par and useable, will always put the price back up!! in-expensive?? GT40s!!
More money.. ported E7s !! More money ported GT40s.. then alum. Heads!! but hey...its
Just me.......................