small block heads, 4027596 casting # any good??
not so fast.
a stock X-head will flow about 220cfm @ .500" to .550"
a typical stock 360 head will flow about 180cfm @ .450" lift.
273/318 stock heads are way worse yet.
(FLOWED @ 28"Hg)
thats a big difference right there.
Looks like the extremes of the tables on flow numbers I've seen. More or less, about the same, lets keep splitting hairs for fun!
So far, of the comparo you list, the X head has a 2.02 and the other a 1.88.
Why did you stop at .450? They will flow more past that point.
Also, what is typical?
Now, on to the OE posters issue.
I guess what i'm asking is are these heads worth doing anything with? I'd love to try and get a nice port and polish on them and bigger valves, somewhere in the area of 2.02/1.60's, you guys know the deal.
So by means of your post, one could possibly say your suggesting not to port the heads he has in favor of spending yet more money on X heads?
Or did this sentence escape you?
I'm a young guy (17) and am looking to get all i can out of this motor but money is super tight.
Considering the possible work that lays ahead for this young fella, the casting of the head is not a great big deal when the head will be ported. At that time, when your laying your money down, your speaking to the head porter asking for similar flow numbers or better than the Edel. head and it should not cost you an arm and a leg to get done.
At 17, I think he's income can taxed very well very quickly and saving him $200 on a set of head is a good thing.
Of course, we could all get togther and (Cyber) spend his money into a blown HEMI.
