gen 3 head questions

[montess408]

does anybody have the flow numbers for stock 3400 heads ?
how much better do 3500 heads flow ?

[3400-95-Modified]

Quite a bit better, Ben has the numbers somewhere.

stock 3500's flow just about as good as Bens best ported 3400's IIRC.

[SappySE107]

Stock 3500 heads do not outflow my boost 3400 heads. Flow isn't everything though.

Here are the examples I posted on the site.

3500 http://60degreev6.com/forum/showthread.php?t=35212
3400 http://60degreev6.com/forum/showthread.php?t=24980

The exhaust flow is better than those say for the 3400, due to the testing method. Without an extension tube off the head, turbulence at the port is too much to go higher than what you see.

[montess408]

so the stock heads are better then i thought they should be able to make good power then
hey ben what would you recomend for a cam stock heads camaro pistons and 125 shot of nitrous (start a 50 work my way up to 125 )
and are the stock intakes good for the heads or would they need porting ?

[SappySE107]

Ill have to go through the cams tomorrow at the shop for higher compression and nitrous. Probably the stage 3 boost cam for nitrous use, or the 1357 with 114 lsa.

I would port the manifolds for sure. They are critical to unleashing those wonderful heads potential.

[SappySE107]

http://wot-tech.com/shop/index.php?act=viewProd&productId=106

That cam with ls6 or comp 26915 springs