What do the stock heads flow?

[Matt D]

Anyone know what a stock 500 head flows?

 

[darkstar november]

i heard its a hair more than cobra r heads

 

[US-1]

i heard its a hair more than cobra r heads

Wow. Such in-depth technical responses. Now...is that a regular hair more than the Cobra R heads or is it just a mere hair?



300-ish intake/255-ish exhaust at .500" lift with 28" of vacuum on a 3.550" bore plate.

 

[dysan]

Heh....Flow Masta Wheela!

 

[Rasmus]

3.570" bore, 25" water, .500 lift

3V
intake: 195.9
exhaust: 139.5

Cobra R
intake: 268
exhaust: 206

GT500
intake: 274
exhaust: 213

 

[US-1]

Who the hell uses 25"?????

 

[darkstar november]

Wow. Such in-depth technical responses. Now...is that a regular hair more than the Cobra R heads or is it just a mere hair?



300-ish intake/255-ish exhaust at .500" lift with 28" of vacuum on a 3.550" bore plate.

didnt try to explain something i didnt understand entirely. i heard they were superior to cobra r heads but by a small margin flow wise


so im going to go with horse hair

 

[TexasKyle]

didnt try to explain something i didnt understand entirely. i heard they were superior to cobra r heads but by a small margin flow wise


so im going to go with horse hair

Horse, not Beaver?

 

[darkstar november]

i feel horse was more appropriate

 

[dysan]

I prefer camel toe hair myself.

 

[US-1]

You would. Pervert.

 

[Matt D]

Thanks guys. Aparently the Cobra R's are the shit too.. alot of Na guys used them. Good to know the gt500 heads are right there with them.


Much apreciated

 

[US-1]

The problem with the Cobra R heads is.............they are Cobra R heads. The "R" should stand for Rare. As hen's teeth.

 

[darkstar november]

sd, isnt the gt500 4v heads an evolution of sorts from the cobra r heads?

 

[US-1]

Yup