GP on Livernois Motorsports Stage 2 LS-Series "243" Heads

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Old Mar 10, 2008 | 01:54 PM
  #1  
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Default GP on Livernois Motorsports Stage 2 LS-Series "243" Heads

We are offering our LS-Series Stage 2 Heads to the members of the forum for $1,099.00 + shipping and tax (MI Residents only)

I need to have payment from 10 or more people by 6:00 pm Friday, March 29, 2008. The heads will ship the following week.

Please email rleblanc@livernoismotorsports.com or call 313-561-5500 ex. 2123.

Specs:
  • New GM 243 casting
  • 5 axis CNC machined
  • Fully assembled
  • 220cc Intake Runner
  • Intake Flow Rate 305 CFM
  • Exhaust Flow Rate 235 CFM
  • New 2.000 intake valves / 1.550 exhaust valves
  • GM valve seals and locks
  • Livernois dual coil valve springs good to ~ .690 lift
  • Manley titanium retainers
  • No core required

Flow Numbers



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Thank you

Regards,

Rick LeBlanc
Livernois Motorsports
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Old Mar 11, 2008 | 12:03 PM
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Smokin Deal
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Old Mar 17, 2008 | 03:17 PM
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so if you live out of michigan then your screwed.
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Old Mar 17, 2008 | 03:32 PM
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No, he's saying that taxes only apply to Michigan Residents.
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Old Mar 17, 2008 | 05:58 PM
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What would the average power gains be on a bolt on car?
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Old Mar 17, 2008 | 10:26 PM
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will the TRAk cam fit under these with out fly cutting the pistons??
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Old Mar 18, 2008 | 08:06 AM
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The best thing I can say is (part of the reason I use them) The livernois heads use a 243 casting, and stock ls2 valve. So 99.9% of the time if the stock 243 clears, the livernois one will clear as well...
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Old Mar 18, 2008 | 08:48 AM
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Originally Posted by Brian @ KYTP
No, he's saying that taxes only apply to Michigan Residents.
Thank you for verifying that Brian! You are correct, the MI Residents only applies to sales tax.

Originally Posted by _JB_
What would the average power gains be on a bolt on car?
Typically we see about 100 RWHP gain from Stage 2 Heads, our Stage 2 Cam, Kooks Longtube Headers & X-Pipe w/ Cats, and CAI.

Please see the graph below from a 2005 C6 6-Speed



Originally Posted by 88ls1blazer
The best thing I can say is (part of the reason I use them) The livernois heads use a 243 casting, and stock ls2 valve. So 99.9% of the time if the stock 243 clears, the livernois one will clear as well...
Andy is also correct. Typically if the stock 243 clears, ours will as well, but we always recommend checking PTV clearance.

Thank you

Regards,

Rick LeBlanc
Livernois Motorsports
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Old Mar 18, 2008 | 11:19 PM
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I was thinkin bout the trak cam but was wondering how your Stage 2R cam would be with these heads would be?? i have a 4000 stall LT ORY LM1 exhuast. 90/90 set up 373 gears
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Old Mar 21, 2008 | 07:59 AM
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What are the specs on the trak cam? I cant think of any vehicles that we've done here with stage 2 heads and stage 2R cam, but I think it would make slightly more power than the stage 2 / stage 2.
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Old Mar 21, 2008 | 08:00 AM
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1 more week. I'm currently at 8 people. If you want to be included in the sale, please pm me with your name and phone number and I will contact you next Friday for payment/shipping information.

Thank you

Regards,

Rick LeBlanc
Livernois Motorsports
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Old Mar 22, 2008 | 01:04 PM
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Good heads. I think I paid $1200 for mine, so this is a really good deal.

As far as hp gains, I did Livernois Stage 2's, TR 224/224, LT's, and cai at the same time and picked up 102 hp on an LS1.
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Old Mar 22, 2008 | 02:19 PM
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Originally Posted by quadman
Good heads. I think I paid $1200 for mine, so this is a really good deal.

As far as hp gains, I did Livernois Stage 2's, TR 224/224, LT's, and cai at the same time and picked up 102 hp on an LS1.
Is that at the flywheel or rear wheel ???
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Old Mar 22, 2008 | 10:15 PM
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Originally Posted by 04goatman
Is that at the flywheel or rear wheel ???

102 more rwhp
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Old Mar 23, 2008 | 12:12 AM
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very tempting!!
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Old Mar 23, 2008 | 08:44 PM
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i am very interested, if i buy a c5 performance package will the GP apply to the price? also how does the stage 2 cam idle and drive? my goal was to build a stealth car but thats going out the window. any vids or sound clips?
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Old Mar 24, 2008 | 09:51 AM
  #17  
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Brads01WS6,

The stage 2 cam has excellent drivability. Please view the following link for a video clip of this camshaft at start-up and idle.

Stage 2 Cam - Start-up and Idle

If you buy the C5 Performance Package, I will work on pricing for you.

Thank you,

Rick LeBlanc
Livernois Motorsports
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Old Mar 24, 2008 | 03:17 PM
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does the stage 2r cam clear with the stage 2 heads?
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Old Mar 24, 2008 | 03:35 PM
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Are the valves stock GM? Are the exhaust valves sodium filled? What are the spring pressures?

Thanks,

George
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Old Mar 24, 2008 | 04:34 PM
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Originally Posted by ibjamin
Are the valves stock GM? Are the exhaust valves sodium filled? What are the spring pressures?

Thanks,

George
The valves are factory GM non-sodium filled and springs specs are as follows:

Specifications:

Install Height: 1.820
Max. Valve Spring Lift: .680
Spring Pressure Closed: 150lbs
Spring Pressure Open: 382@.620 / 410@.680
Coil Bind: 1.100
Retainer Material: Titanium

Originally Posted by 1slow98Z28
does the stage 2r cam clear with the stage 2 heads?
We've had vehicles where it did clear and have had some that didn't. It's close, but we always recommend checking PTV clearance.

Thank you

Regards,

Rick LeBlanc
Livernois Motorsports
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