Worth a watch these videos if you ever with to modify heads on an LS1.
The guy knows his stuff and is also smart enough to know about velocity over CFM.
Check them out so you dont get ripped if you ever go down the ported head path.
6 videos, ill link the first and just follow thru to the rest.
YouTube - StreetKillz.net LS1 Head Port Info. Part 1 of 6
Very interesting video. The dude sure seems to know what he is talking about. I watched all the vids and it is awesome information. I might get out in the shed and start hacking into my own heads now![]()