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

Click for Larger Image
Thank you
Regards,
Rick LeBlanc
Livernois Motorsports
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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

Thank you
Regards,
Rick LeBlanc
Livernois Motorsports
The Best V8 Stories One Small Block at Time
Thank you
Regards,
Rick LeBlanc
Livernois Motorsports
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.
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
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
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




