World Products' New LS1X "Warhawk" Heads

[vettenuts]

Wondering if anyone read this article (I have the paper version). I wasn't too impressed with the head unless there are a lot of typo's in the article. Intake valve and port size seem very big (2.08"/235 cc) and the flow is 304 cfm at 0.650" lift, which seems low (or similar flow to a smaller port such as the AFR 205). While I admit to not being a head expert, do these numbers seem poor to anyone else?

Link to article (http://www.vetteweb.com/tech/vemp_0809_corvette_cylinder_heads/index.html)

[SStrokerAce]

Do I have to be nice here?

Does anyone have the full flow curve?

[LinearX]

The article states that the exhaust flows 218.9 "as cast." It appears, thought, that the heads got some hand porting as noted on the second page. They were also milled to 62cc.

I don't see any comparisons against other heads in that article either. I agree that 304cfm at .650 is a bit light for the runner and valve size that are there.


It all makes me wonder if the 304/218.9 numbers are before or after they were hand ported?

[vettenuts]

It's not very well written from a technical standpoint and seems to leave a lot of questions. I have no doubt they will put down big numbers since this is well beyond a head test in the article. The information that is stated in the article for the heads themselves just seems off.

[Stang's Bane]

Damn, they damn sure put enough header on it.....

[SStrokerAce]

Seriously and it's a 5.7!