What's Flow # on stock 98 heads ??
 

Would anyone know Flow # on stock heads ??

??????

I found this quote below in a thread a while back by "99 Black Bird T/A"

"Stock LS1 heads will usually flow ~210 to 220 cfm with the LS6 intake in place."

Here is the link to that thread, and be sure to go read the entire thread, as this is taken out of context. He goes on to say other things that qualify that statement in relation to CFM being made with the intake on the engine. Apparently you want to know what they would make on a flow bench. Hope this gives you a starting place. Just a quick search found this thread. :)
https://ls1tech.com/forums/showthrea...s+flow+numbers
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Edit:
Here is another thread that mentions stock flow numbers on a bench.
https://ls1tech.com/forums/showthrea...ads+bench+flow

"Jantzer98SS" says in a thread about a year ago:
"On my bench, stock LS1 240@.600"

Again, read the entire thread, this quote is taken out of context. :cool:

That ol' search function really produces some results! ;)