Originally posted by FELBER632
My input, and WHY 300+ from a LS1 head is TOUGH... Most people aim at the PORT, and forget about the chamber...It sickens me when I see people say that a 317 (6.0) head flows the same as a 243 (LS6) head just because the ports are modeled/cast after the other...Food for thought...Airflow is dictated as much in the EXIT of the valveseat as it it is on the entrance.
Thanks for reading
Felber
Yes...big difference between the two as far as chamber goes. That 6.0 head usually stalls hard at .600-.620 lift from what i have seen. Although Meaux gets them to flow to .700 somehow.
The LS6s seem to do much better in the high lifts...but for most hyd cam LS1s...they will not see in excess of .575 actual valve lift anyways. So for most i guess the 6.0s are a bargain.
Felber...what valves have you seen working well in these heads? Ferrea? Manleys?
And whats your thoughts on low to mid lift flows vs peak flows?? Do you concentrate on one VS the other...or just across the board?
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