We all know that the AFR's and Edlebrocks are usually the best heads. I know this. But I want to know just how much better are they than a set of aftermarket alumminum GT-40's. What can a good port job do for these. I will probably go with Edlebrock victor Jr.'s but have recently seriously started to think about some aluminum GT-40s. I have a rock solid bottom end and it is a nitrous (mostly) motor. It would be nice to save a few hundred bucs for say 20-30 horespower for AFR's etc. versus some GT's. Anyone know of a good p&p shop that I could send em to.

 

Link below will take you to a nice head comparison page, just pick 2 heads in the drop down menu to compare flow numbers. Enjoy!!!


http://www.allfordmustangs.com/Detailed/630.shtml

 

Thats a cool feature but does anyone else have any personal experience and or ideas?

 

Nice site birdman! Check out the flow on the yates [:-]

 

screw the afr's, go for the jegs /Kaase SB-Ford Cylinder Heads, they made 511 HP @ 7800 rpm on a stock 302 with those ,Edelbrock Victor intake with a Holley 750 carb and a 256 degree mechanical roller cam.

 

anyways about the head comparison.....

 

wow, i never knew the yates were that good.

 

some of those head there are custom built ..like the canifields....most are the 18 or 20 degree heads with 2.02 valve

 

The AFR heads are by far the best. Every test I have seen of sbf heads has had them up top. On a stock 302 with only a dual plane weiand and a 4 barrel, they made 100 hp more. This is more than the trick flow and edelbrock heads. If you don't believe me, go here http://www.carcraft.com/techarticles/116_0307_ford/ They made over 400 hp on a completely stock carbeurated 5.0 with AFR heads and roller rockers.

 

Very impressive. Almost makes me wanna use my stock cam....... or not.