Max flow with stock valves?

HyperGT · #1 11-20-2003, 12:03 PM

I know there could be more to it but Im just wondering what the maximum flow capabilities would be on a 2V head that still uses the stock intake/exhaust valves? Are 220/180 flow numbers possible with this and a port job?

I'm trying to make sense of some flow numbers a guy gave me on his ported heads with stock valves.

Anybody have concrete answers or an educated guess?

#2 11-20-2003, 12:48 PM

I thought 200-210 was the most but maybe not???

HyperGT · #3 11-20-2003, 01:33 PM

Well, Fox Lake posts their stage 1 port jobs with stock valves as flowing 200/180. So I was trying to make sense outta this statement that they flow better. I don't see how they could.

#4 11-20-2003, 04:55 PM

Thats about right.
200/180 and the 180 on the exhaust is a stretch.

#5 11-20-2003, 10:03 PM

What are the flow numbers on an untouched 99+ stock head? Are the numbers the same 99-04?
Thanks

HyperGT · #6 11-21-2003, 05:05 AM

Stock is about 163/150 @ .500

Fox Lake's numbers above are at .500 as well