revving the LS
10-16-2006, 04:28 PM
#11
3.0 BAR
Join Date: Nov 2003
Posts: 5,838
Re: revving the LS
Originally Posted by Joseph Davis
Strange, I have a lot less in an low overall milage + 8K since machine shop cyl head with Crower billets and valvetrain than the run of the mill high mileage half slopped out GSR head that needs to go off to the machine shop sells for.
10-16-2006, 05:22 PM
#15
3.0 BAR
Thread Starter
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
Re: revving the LS
for now i am gonna use an ls head that i found with IM for $100. my reason for the vtec head was for high revving. i was unaware that the ls head had the capability to flow what would be needed. my final goal in this build is 400whp so it sounds like the ls head will be plenty along with the ls block i have.
thanks for all the info Joe, i am an open minded person and i was just stating what i have heard hoping to either have it confirmed or hear something better like you did. maybe just try to tone it down a little. i have hated b series engines for years cause i didnt want to jump on the bandwagon like every other club going *** i know where i live. but i bought this Ls since i figured i could make more hp and have a little more reliability than a 400whp d series
thanks for all the info Joe, i am an open minded person and i was just stating what i have heard hoping to either have it confirmed or hear something better like you did. maybe just try to tone it down a little. i have hated b series engines for years cause i didnt want to jump on the bandwagon like every other club going *** i know where i live. but i bought this Ls since i figured i could make more hp and have a little more reliability than a 400whp d series
10-16-2006, 07:35 PM
#16
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: revving the LS
I've personally never had too much luck revving the LS heads past 7500, and neither have a few of my friends. Once and a while I might've crept up to 7800 on accident (usually first gear or 2nd at wot and 14psi 
) and the rocker arms held, but as an everyday thing I personally think you should look into a way to keep them in once place...like the sr20 setup that JD's talking about.
) and the rocker arms held, but as an everyday thing I personally think you should look into a way to keep them in once place...like the sr20 setup that JD's talking about.
10-16-2006, 11:13 PM
#18
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: revving the LS
I've seen a bunch of cars doing 8000 rpm no problems. TurbodEG has revved 404'd LS head to 8700 and never had problems. I think he was just real damn lucky, tho, I wouldn't even try. 
No, I got everything at cost. The Skank2 IM was a good deal, though.
Originally Posted by 88dx
Ok so u found a good deal, but someone else probably already has what like $600 into it.
10-17-2006, 08:56 PM
#19
3.0 BAR
Thread Starter
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
Re: revving the LS
so, i did a bunch of searching and i cant find much info on the sr20 rockers. all i can find are "lash killers" but the pics are really small and never pictured in an engine and no information about installation. does anyone know where i can find info on the rocker mod. if the LS head will flow to 8k then i will just make something to fix the rockers and not bother with vtec. i would rather spend the extra money on something other than i a head i dont need
I can't seem to find that much info on the LS rockers at all.
