LPE LS6 heads
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Joined: Nov 2004
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LPE LS6 heads
Can anyonwe with these heads post their times? And also post what can you run with them. I called LPE today and they said the intake runners are 246cc's 
I dont have a 3,200lbs ZO6, so how do these heads perform. I have a stock cube WS6 with a A4. I do have a 3,600 stall converter but runners that big with hurt me big time. Bigger isn;t better. I cant see why they needed to port them so much. TEA and MTI has LS6 heads have a 220cfm runner and flow 320cfm. The LPE heads cant have any low end torque especially in a heavy car. Please help me with any results you guys have with these heads.
Thanks,
Den
I dont have a 3,200lbs ZO6, so how do these heads perform. I have a stock cube WS6 with a A4. I do have a 3,600 stall converter but runners that big with hurt me big time. Bigger isn;t better. I cant see why they needed to port them so much. TEA and MTI has LS6 heads have a 220cfm runner and flow 320cfm. The LPE heads cant have any low end torque especially in a heavy car. Please help me with any results you guys have with these heads.Thanks,
Den
Drifting
Joined: May 2003
Posts: 1,715
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From: cAshburn VA
With a small cam and stock LS6 heads I run as fast and as much hp as alot of similar set ups I see here with stage II (insert mfg here) heads and cam. I can only imagine that the LPE ported LS6 heads are that much better.
Maybe some others will chime in with some more specific info.
Maybe some others will chime in with some more specific info.
Safety Car
Joined: Mar 2002
Posts: 3,556
Likes: 2
I have the LS6 CNC ported heads with 11.2 compression and a Cartek H-cam (113 LSA) which produces an average of 417-423/385-387 SAE RWHP/TQ at 6,000 and 5,000 rpms respectively in ridiculously hot & humid weather (95-85 degrees). I feel with more agressive LG Headers my hp and torque would be even higher.
I don't have all my dyno sheets handy, but I remember the H/C hp/tq curve duplicated my LS1 with Intake and Headers (untuned) until 3K-4K rpms where the thing jumped significantly and than continued to outpace my old RWHP of 311-315.
Also, I have the stock 2.66 first and 3.42 rear and I've never felt the need for gears or what I would percieve as a loss in low end. The 11.2 compression really gives it a lot of OOMF. Bogging it in 6-th gear below 1200 rpms seemed not much of a problem either, and it would pull out no problem. I also have a really good tune. Good Luck!
Here are the pics LPE CNC LS6 vs. stock LS1 :
I don't have all my dyno sheets handy, but I remember the H/C hp/tq curve duplicated my LS1 with Intake and Headers (untuned) until 3K-4K rpms where the thing jumped significantly and than continued to outpace my old RWHP of 311-315.
Also, I have the stock 2.66 first and 3.42 rear and I've never felt the need for gears or what I would percieve as a loss in low end. The 11.2 compression really gives it a lot of OOMF. Bogging it in 6-th gear below 1200 rpms seemed not much of a problem either, and it would pull out no problem. I also have a really good tune. Good Luck!
Here are the pics LPE CNC LS6 vs. stock LS1 :
