LS1 to LS6
Thread Starter
Drifting
Joined: Sep 2001
Posts: 1,580
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From: Greensburg PA
LS1 to LS6
I have a goofy idea to try to make an LS6 out of my present motor. I have a 2001 w/ blackwing, high flow air duct, coolant bypass, Breathless long headers. What additional mods would I need to apply to make it a legit LS6? Thanx :chevy
Le Mans Master
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From: Fort Worth Texas
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Re: LS1 to LS6 (radstoy)
If you have a late 2001+ C5, then you allready have the same identical short block assembly ast the LS6. Simply add LS6 Heads, and an LS6 cam, and you will have a LS6 motor. But I would not waste your time with that. Just get ported heads, and aftermarket cam, and you will be way ahead.
Drifting
Joined: Aug 2000
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From: Chapin SC
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Re: LS1 to LS6 (radstoy)
The LS6 block is different. Here's a quote from Hib Halverson "LS6’s very core is unique. The LS1 had had less-than-optimum high-rpm oil control, so GMPT set-out to improve that with a special block. It was revised at the base of the cylinders to improve "bay-to-bay" breathing. As the pistons move up and down, they force air in-and-out of the spaces (or "bays") beneath them. At high rpm, this reciprocating air flow is violent and really whips up the oil. While the LS1 block has some machined openings between bays, the LS6 block has larger "windows" at the base of each cylinder that better accommodate bay-to-bay breathing. The positive crankcase ventilation (PCV) system was also changed. Taking a page out of the LT5’s book, the LS6 gets a valley-mounted oil separator. This both reduces oil aeration and simplifies the PCV system. All this improves oil control, reduces oil consumption, reduces parasitic power loss and contributes to the LS6’s 500 additional, usable rpm."
Melting Slicks
Joined: Mar 2001
Posts: 2,372
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From: New Milford CT
Re: LS1 to LS6 (kewlbrz)
Kewlbrz, I am planning the same thing, only I want to go beyond LS6 like you suggest.
So, let me ask you this, what heads do you think would be the right choice for this set-up: late 2001 LS1 coupe MN6, Donaldson, Stainless Works long tubes, stock main cats and cat back exhaust, MMS .221/114 cam, underdrive pulley. Just what heads to make ~ 400+ rwhp, and ~395 rwt on a torque curve that is broad and starts as low as possible.
This is a daily driver, that I hope to drive 75,000 miles with out breakdown, no track racing.
So, let me ask you this, what heads do you think would be the right choice for this set-up: late 2001 LS1 coupe MN6, Donaldson, Stainless Works long tubes, stock main cats and cat back exhaust, MMS .221/114 cam, underdrive pulley. Just what heads to make ~ 400+ rwhp, and ~395 rwt on a torque curve that is broad and starts as low as possible.
This is a daily driver, that I hope to drive 75,000 miles with out breakdown, no track racing.
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
Re: LS1 to LS6 (CJS)
The LS6 block is different.
from the Black Book for 2001:
LS6 engines used a new block casting (shared with the base LS1 after production started)...
beginning with 2001 serial number "XXXX" (I don't know the specific start point) the LS1 has the newly casted LS6 block.
Le Mans Master
Joined: Jul 2000
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From: Fort Worth Texas
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Re: LS1 to LS6 (JerryL)
The LS6 block is different. Here's a quote from Hib Halverson "LS6’s very core is unique. The LS1 had had less-than-optimum high-rpm oil control, so GMPT set-out to improve that with a special block. It was revised at the base of the cylinders to improve "bay-to-bay" breathing. As the pistons move up and down, they force air in-and-out of the spaces (or "bays") beneath them. At high rpm, this reciprocating air flow is violent and really whips up the oil. While the LS1 block has some machined openings between bays, the LS6 block has larger "windows" at the base of each cylinder that better accommodate bay-to-bay breathing. The positive crankcase ventilation (PCV) system was also changed. Taking a page out of the LT5’s book, the LS6 gets a valley-mounted oil separator. This both reduces oil aeration and simplifies the PCV system. All this improves oil control, reduces oil consumption, reduces parasitic power loss and contributes to the LS6’s 500 additional, usable rpm."
[Modified by kewlbrz, 9:55 PM 7/23/2002]
Burning Brakes
Joined: Aug 2000
Posts: 873
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From: Albuquerque nm
Re: LS1 to LS6 (kewlbrz)
Simply add LS6 Heads, and an LS6 cam, and you will have a LS6 motor. But I would not waste your time with that. Just get ported heads, and aftermarket cam, and you will be way ahead.
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Le Mans Master
Joined: Sep 2001
Posts: 5,857
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From: Gainesville VA
Re: LS1 to LS6 (radstoy)
I was thinking the same thing with my 2002 which has a LS6 block and intake already sans the cam, heads and computer.
Why would I not go with a LS6 head for it. The Z06 get consistantly higher RWHP.........aren't they useing LS6 heads instead of LS1 for there aftermarket choice?
:seeya
Why would I not go with a LS6 head for it. The Z06 get consistantly higher RWHP.........aren't they useing LS6 heads instead of LS1 for there aftermarket choice?
:seeya
Melting Slicks
Joined: Oct 1999
Posts: 2,793
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From: carmel Indiana usa
Re: LS1 to LS6 (Mike Mercury)
I plan on doing a lot of the things you're thinking about. My plan is to go with 3.73 gears, LS6 heads/intake, Cartek clutch, and have Lingenfelter do the engine work. Stiiffer sway bars and better shocks and I feel like I can hang with any stock z06 on the planet with the rest of my mods.
The trick is to go slow and buy quality if you're on a budget like me.
Good Luck!
David In Indy :seeya
----------------
2000 NBM M6-Coupe
All Options minus F45
Euros/Lloyd Mats/Chrome Shifter/Ripper/Halltech tric/T-bypass/Taylor
Wires/TTS Headers/High Flow Cats/X-pipe/Indy Corsas/Baers/Z06
Calipers/Russell ss brake lines/Hawk Pads/Lowered/Yokohama Avs Sports/Porsche DOT4 Hi-Performance Brake fluid/Redline oils/Zaino/Engine Dress by Auto Buffs and Design Specialties
The trick is to go slow and buy quality if you're on a budget like me.
Good Luck!
David In Indy :seeya
----------------
2000 NBM M6-Coupe
All Options minus F45
Euros/Lloyd Mats/Chrome Shifter/Ripper/Halltech tric/T-bypass/Taylor
Wires/TTS Headers/High Flow Cats/X-pipe/Indy Corsas/Baers/Z06
Calipers/Russell ss brake lines/Hawk Pads/Lowered/Yokohama Avs Sports/Porsche DOT4 Hi-Performance Brake fluid/Redline oils/Zaino/Engine Dress by Auto Buffs and Design Specialties