LS1 vs LS6
Le Mans Master
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From: Fort Worth Texas
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Re: LS1 vs LS6 (TORCH COUPE)
Actually the LS1 began using the LS6 shortblock in late 01 production (minus the LS6 cam of course).
This has also been confirmed by c4c5specialist who has disassembled the engines for warranty work and such and seen the bay to bay breathing etc on the late model 01 LS1's. Im not sure of the exact switchover date tho.
The primary difference before late 01, was the LS6 used the different block.
[Modified by kewlbrz, 12:22 PM 7/29/2002]
This has also been confirmed by c4c5specialist who has disassembled the engines for warranty work and such and seen the bay to bay breathing etc on the late model 01 LS1's. Im not sure of the exact switchover date tho.
The primary difference before late 01, was the LS6 used the different block.
[Modified by kewlbrz, 12:22 PM 7/29/2002]
Drifting
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From: Boulder, Colorado
Re: LS1 vs LS6 (kewlbrz)
The primary difference before late 01, was the LS6 used the different block.
The main thing to increase power is the LS6 heads (visually distinguished by 'D' shaped exhaust ports), and the cam with more lift and duration.
Le Mans Master
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Re: LS1 vs LS6 (Miles in Michigan)
The primary difference before late 01, was the LS6 used the different block.
Well, the block wasn't responsible for the power increases.
The main thing to increase power is the LS6 heads (visually distinguished by 'D' shaped exhaust ports), and the cam with more lift and duration.
Well, the block wasn't responsible for the power increases.
The main thing to increase power is the LS6 heads (visually distinguished by 'D' shaped exhaust ports), and the cam with more lift and duration.
Melting Slicks
Joined: Mar 2001
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From: New Milford CT
Re: LS1 vs LS6 (kewlbrz)
So if you already have the LS6 block on a late 2001, then what would it be better to go with: stage II LS1 heads or stage I LS6 heads? Assuming a .221/.558/114 cam and longtubes?
Le Mans Master
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From: Fort Worth Texas
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Re: LS1 vs LS6 (CJS)
So if you already have the LS6 block on a late 2001, then what would it be better to go with: stage II LS1 heads or stage I LS6 heads? Assuming a .221/.558/114 cam and longtubes?
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Team Owner
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Re: LS1 vs LS6 (alc2001)
I'm gonna have a go at describing the external difference between the LS1 and the LS6. Look at the extension of the block deck on the right (passenger) side just forward of the head (where older small block motors had the serial number stamped). You will see a rough indentation toward the center of the block and a flat machined section toward the side of the car. On the LS1 the machined section is flat and on the LS6 the machined section has a slight machined cutout. It's hard to explain, but if you look at this part of the block on an older (early '01 and prior) LS1 and a Z06 side by side, you can easily see the difference.
Le Mans Master
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Re: LS1 vs LS6 (Duck916)
Duck, this is my 2001 LS1 passenger side where you describe. Seems to fit your description of LS6. My Build date by the way was May 25th 2001.
[Modified by kewlbrz, 11:39 PM 7/30/2002]
[Modified by kewlbrz, 11:39 PM 7/30/2002]
Racer
Joined: Feb 2002
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From: Portland OR
Re: LS1 vs LS6 (Duck916)
Duck,
Thanks for the info. Looks like mine would also be an LS6 block. So all I need now is the heads, cam, exhaust, clutch, MAF, MN12, brakes, wheels, windshield, etc and I'll have a ZO6.
Thanks for the info. Looks like mine would also be an LS6 block. So all I need now is the heads, cam, exhaust, clutch, MAF, MN12, brakes, wheels, windshield, etc and I'll have a ZO6.
Melting Slicks
Joined: May 2001
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From: Novi MI
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Re: LS1 vs LS6 (TORCH COUPE)
Just checked the engine bay.
My Vert was assembled Feb 01.
It appears to have the LS6 block. :cool:
My Vert was assembled Feb 01.
It appears to have the LS6 block. :cool:
Melting Slicks
Joined: Aug 2000
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From: Newland US
Re: LS1 vs LS6 (TORCH COUPE)
I just went to the garage and looked at my 01 Coupe...It has the flycut on the boss as shown in the picture. Build date was first week in Dec. 2000.
Does anyone have an 01 which has the flat boss on the block at the position shown it the pic? If so would you post your build date?
Mark
Does anyone have an 01 which has the flat boss on the block at the position shown it the pic? If so would you post your build date?
Mark
Le Mans Master
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Re: LS1 vs LS6 (Catfish III)
LS1 block did not have bay to bay breathing, and the casting in the LS6 does. Also the LS6 is traditional sand cast. the ls1 is semi permanent mold.
Melting Slicks
Joined: Aug 2000
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From: Newland US
Re: LS1 vs LS6 (TORCH COUPE)
I ran across the link below which might be of interest to those following this thread.
http://www.idavette.net/hib/ls6/page3.htm
Mark
http://www.idavette.net/hib/ls6/page3.htm
Mark
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Re: LS1 vs LS6 (alc2001)
Duck,
Thanks for the info. Looks like mine would also be an LS6 block. So all I need now is the heads, cam, exhaust, clutch, MAF, MN12, brakes, wheels, windshield, etc and I'll have a ZO6.
Thanks for the info. Looks like mine would also be an LS6 block. So all I need now is the heads, cam, exhaust, clutch, MAF, MN12, brakes, wheels, windshield, etc and I'll have a ZO6.
