Quick Ls6/ls1 Question
Thread Starter
Le Mans Master
Joined: Feb 2002
Posts: 9,883
Likes: 518
From: Bergen County NJ
Quick Ls6/ls1 Question
Can the LS6 handle more power on the stock bottom end than the LS1??? I read in a few posts today people saying that the LS6 bottom end can support 600rwhp with the alky kit and you should have no problems. I thought that 550rwhp was really the most you should try with our stock bottom ends or is that for the LS1 ??
LS1 = 550RWHP and LS6 = 600RWHP??? Or no ?
LS1 = 550RWHP and LS6 = 600RWHP??? Or no ?
Race Director
Joined: Nov 2001
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St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
From what I have read here, a properly tuned 2000 and up LS1 can handle 600rwhp on stock bottom end. Ofcourse you need to add Alky and heads to lower the compression. There are several LS1/LS6 over the forum running 600+ rwhp on stock bottom 
Premium Supporting Vendor
Joined: Mar 2001
Posts: 5,241
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From: Knoxville Tennessee
The reason that you see people saying 550 on an LS1 and 600 on an LS6 is that the LS6 cam is more boost friendly, coupled with better flowing heads and intake, so you can made a bit more power with them on that basis, the bottom ends are equally as strong, the LS6 has a bit higher compression though.
Add akly and you will be good to go, you will just strain the motor more trying to push 600 hp on the LS1 because of the aforementioned items.
Add akly and you will be good to go, you will just strain the motor more trying to push 600 hp on the LS1 because of the aforementioned items.
Thread Starter
Le Mans Master
Joined: Feb 2002
Posts: 9,883
Likes: 518
From: Bergen County NJ
My goal was to make 575rwhp on my stock bottom end (03 Z06) with ECS Novi 2000 kit. Is that possible or will I need longtubes as well ??? I know I will need a new clutch and tune obviously and the alky but are longtubes needed ?? I'm waiting for track season and my friend has an 03 cobra with a KB making 640+rwhp so I figure my z06 with 575rwhp shoould be enough to take him at the track. I hear the Novis are pretty mean
Race Director
Joined: Nov 2001
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St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
I am going with ECS blower cam and 317 heads along with Alky on a stock 2000 bottom end and will be running 12 psi of boost via Vortech S trim. Should be around 600rwhp 
Nemesis is over 620 on stock 99 bottom end and ebo2z06 was over 645rwhp
Nemesis is over 620 on stock 99 bottom end and ebo2z06 was over 645rwhp
Safety Car
Joined: Apr 2003
Posts: 4,251
Likes: 7
From: Woodbridge Ontario
Keep in mind guy's, it's the torque rating you should be more concerned about.
HP is just a measurement of speed from your gearing.
Torque's what's going to break your motor, and a few other items if your not careful.
HP is just a measurement of speed from your gearing.
Torque's what's going to break your motor, and a few other items if your not careful.
Last edited by tlaselva; Feb 1, 2007 at 09:33 AM.
Thread Starter
Le Mans Master
Joined: Feb 2002
Posts: 9,883
Likes: 518
From: Bergen County NJ
So whats a good torque level I should look to hit with the set up??
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Thread Starter
Le Mans Master
Joined: Feb 2002
Posts: 9,883
Likes: 518
From: Bergen County NJ
