3500 flow data???

[ericjon262]

Check the flow data listed for both of these...

http://wot-tech.com/shop/gm-60v6/race/boost-3500-cylinder-heads/prod_236.html

http://wot-tech.com/shop/gm-60v6/street-3500-cylinder-heads/prod_237.html

Both the street and the race heads list the same flow data!? so, I must ask, which is which?

[SappySE107]

It is the same porting for both heads.

[ericjon262]

so then the only difference is the valvetrain components?

[SappySE107]

That is correct, as well as any extra machine work needed for the setup to be optimal.