Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
JDP Motorsports
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

View Poll Results: Best aftermarket heads for my mild cam ?
Texas Speed:...PRC Aftermarket LS3 250cc CNC Heads 12 52.17%
Lingenfelter:.....CNC Ported LS3 Cylinder Head 11.0 Compression 4 17.39%
Livernois:.........CNC Ported Stage 3 GM L92 Cylinder Heads 1 4.35%
Other:.............please explain your vote 6 26.09%
Voters: 23. You may not vote on this poll

Reply
 
Thread Tools
Old 03-31-2012, 02:21 PM   #1
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Help me pick the best aftermarket Heads

In combination with my new Cam I'd also get a set of new aftermarket heads. Since I just go for a very mild "stealth" cam I want to get the most out of my Cam/Heads combo.


My new cam: 218/229 .600"/.600" 117.5


So which of those heads will fit my cam best / will show the best gains?



Update: I just ditched the GMPP heads. According to 3 independent flow tests I found, the advertised numbers doesn't seem to be reality.

Last edited by mike.nite; 04-01-2012 at 10:53 AM.
mike.nite is offline   Reply With Quote
Old 03-31-2012, 02:41 PM   #2
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Flow Specs (advertised):

LIFT..........INTAKE........EXHAUST


Texas Speed:
68ccs / 10.8:1 compression

.200............154............117
.300............221............170
.400............281............205
.500............325............225
.600............354............235
.650............358............240
.700............361............243


Lingenfelter
89ccs / 11.0:1 compression

.200............158.............116
.300............230.............161
.400............282.............201
.450............302.............213
.500............322.............220
.550............340.............226
.600............350.............231
.650............358.............234
.700............344.............237


Livernois

.100...........71.9...........51.8
.200..........157.5........105.3
.300..........220.4........154
.400..........263.4........196.2
.500..........308.3........223.1
.600..........346.6........232.5
.700..........357.8........237.2
.800..........359.9........245

Last edited by mike.nite; 04-01-2012 at 11:11 AM.
mike.nite is offline   Reply With Quote
Old 03-31-2012, 08:23 PM   #3
bucketobolts
 
bucketobolts's Avatar
 
Drives: 2010 2SS
Join Date: Jan 2011
Location: Salisbury, NC
Posts: 149
I voted for the GMPP. Of the choices given they are most likely the best bang for the buck and with your cam you could probably have them milled for a bump in compression.
bucketobolts is offline   Reply With Quote
Old 03-31-2012, 09:11 PM   #4
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Quote:
Originally Posted by bucketobolts View Post
I voted for the GMPP. Of the choices given they are most likely the best bang for the buck and with your cam you could probably have them milled for a bump in compression.

Yes the GMPP costs definately less than the others. The thing I just dont get is that according to the flow specs the GMPP heads seem to flow best - so why do the other heads cost more although they dont flow as good as the GMPPs?
mike.nite is offline   Reply With Quote
Old 03-31-2012, 09:31 PM   #5
FIGRRL
aka Bubbles
 
FIGRRL's Avatar
 
Drives: 2010 Silver Ice Camaro 2SS/RS
Join Date: May 2011
Location: Illinois
Posts: 213
I have the GMPP CNC heads on my car and had them flow tested before install.

__________________
Drive fast.
Live in the Chitown area? Ask me about C5G!
FIGRRL is offline   Reply With Quote
Old 03-31-2012, 09:35 PM   #6
Tampa Tuning
Like us on Facebook!

 
Tampa Tuning's Avatar
 
Drives: C5 Corvette/ 2010 Camaro
Join Date: Oct 2010
Location: Tampa, Fl
Posts: 2,435
Quote:
Originally Posted by bucketobolts View Post
I voted for the GMPP. Of the choices given they are most likely the best bang for the buck .
your heads for flow great. A little porting to reduce flashing is a big bang for the buck.

I think you'll get tired of that cam fast and pay for labor to have a larger cam installed and another tune.

If you want "stealth" go FI and love the car.
__________________

Read this: http://www.camaro5.com/forums/showthread.php?t=197715
Vendor : Cold Air Induction/Magnuson
HP Tuners Mail order tuning program
VMAX Throttle body Vendor
www.TampaTuning.com
Tampa Tuning is offline   Reply With Quote
Old 03-31-2012, 09:47 PM   #7
G8RAM
 
Drives: 2009.5 G8 GT
Join Date: Jun 2011
Location: Hilliard Ohio
Posts: 33
Take a look at Land Speed Performance / Street Smart Heads before you buy anything else. I own a set and they are going to be installed with an EPS 222/226 .597/.605 lift 115 LSA in a G8 GT Auto 6 Speed in a couple of weeks.

Many are making the mistake of buying LS3 heads with intake runners ported too much and loosing torque and power. Look at the intake runner sizes on Mast Med Bore, PRC 250CC Aftermarket, & Landspeed Street Smart II CNC heads and you can confirm what I'm talking about. The runner size is smaller to keep the air velocity up and still flow good CFM.

Last edited by G8RAM; 03-31-2012 at 09:59 PM. Reason: More Detail
G8RAM is offline   Reply With Quote
Old 03-31-2012, 11:11 PM   #8
Fiftydriver

 
Fiftydriver's Avatar
 
Drives: 2010 Camaro 2SSRS RJT L99
Join Date: Jun 2010
Location: Fort Shaw, Montana
Posts: 1,199
Looks like the GMPP heads flow much better without the really aggressive lifts so to me I would think that would make life much easier on the entire valvetain.
__________________
Fiftydriver

2010 SSRS, RJTC, L99, Maggie 2300 SC, 3.4" pulley, Roto-Fab CAI, Dynatech Supermaxx LT headers, Dynatech High Flow cats, Corsa Cat back exhaust, Dual Elite Engineering catch can, MSD wires and Jannetty custom tune, JRE custom diff w/ posi mod, 3.91 LPE gears, Pfaht trailing arms, Pfaht trailing arm and Diff bushings, drop springs and sport sway bars front and back, Fesler dual guage pillar pod w/ AM Cobalt Boost and A/F guages.

More to come!!
Fiftydriver is offline   Reply With Quote
Old 04-01-2012, 06:54 AM   #9
FIGRRL
aka Bubbles
 
FIGRRL's Avatar
 
Drives: 2010 Silver Ice Camaro 2SS/RS
Join Date: May 2011
Location: Illinois
Posts: 213
Also keep in mind the max lift on a GMPP CNC head is 550. After that you need to change the valve springs.... So take that into you figuring cost out.... I good set of valve spring could run you anywhere from 250 - 1000 plus install.

hope that helps!

P.S. Lingenfelter has patriot gold valve springs with a 650 max lift on sale cheaper then anyone else....
__________________
Drive fast.
Live in the Chitown area? Ask me about C5G!
FIGRRL is offline   Reply With Quote
Old 04-01-2012, 11:27 AM   #10
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Quote:
Originally Posted by G8RAM View Post
"Many are making the mistake of buying LS3 heads with intake runners ported too much and loosing torque and power." ... "The runner size is smaller to keep the air velocity up and still flow good CFM."
Yes - this is what I like about the TSP PRC heads. They flow like the ported GM LS3 castings, but through a 12cc smaller than stock intake runner. This equals more velocity.



I just have two questions:
  • TSP claims they laid over the valve angle slightly which helps to get about .040" better than stock piston to valve clearance. Doesn't this new angle put more stress on other parts?
  • They are offering 60-68cc Chambers. Which number do I have to choose to get the most gains in combination with my mild cam?
mike.nite is offline   Reply With Quote
Old 04-01-2012, 02:38 PM   #11
G8RAM
 
Drives: 2009.5 G8 GT
Join Date: Jun 2011
Location: Hilliard Ohio
Posts: 33
OP

I can answer your first question about the valve angle.
The improved valve angle provides better piston to valve clearance, allowing for larger cams.
Also the relocation of the valves offers better air flow.

Hope this helps.......

Last edited by G8RAM; 04-01-2012 at 02:38 PM. Reason: More Detail
G8RAM is offline   Reply With Quote
Old 04-01-2012, 03:39 PM   #12
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Quote:
Originally Posted by G8RAM View Post
OP

I can answer your first question about the valve angle.
The improved valve angle provides better piston to valve clearance, allowing for larger cams.
Also the relocation of the valves offers better air flow.

Hope this helps.......
Thanks for chiming in G8RAM - so the improved valve angle doesn't have any downsides? So not more risk for failures than with the stock valve angle?
mike.nite is offline   Reply With Quote
Old 04-01-2012, 04:39 PM   #13
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
bump:



  • TSP claims they laid over the valve angle slightly which helps to get about .040" better than stock piston to valve clearance. Doesn't this new angle put more stress on other parts?
  • They are offering 60-68cc Chambers. Which number do I have to choose to get the most gains in combination with my mild cam?
mike.nite is offline   Reply With Quote
Old 04-01-2012, 05:45 PM   #14
G8RAM
 
Drives: 2009.5 G8 GT
Join Date: Jun 2011
Location: Hilliard Ohio
Posts: 33
OP

If there is a downside to a better valve angle I don't know what it would be?
There are other after market heads that have been modified the same for sure.
G8RAM is offline   Reply With Quote
Old 04-01-2012, 05:57 PM   #15
DarkFox1
 
DarkFox1's Avatar
 
Drives: 2012 2SS A6
Join Date: Mar 2012
Location: Douglasville GA
Posts: 647
I voted other, but you have a very good selection here.

My "other" would be AFR 225s. Contact Tony Mamo at AFR and he can get you set up.

It'll cost ya though. About $1000 more from my experience over the PRC heads at TSP. You may get 30-60 more WHP out of the AFR route though.
DarkFox1 is offline   Reply With Quote
Old 04-02-2012, 05:05 PM   #16
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Thank you very much for the suggestions guys. This is really appreciated.




Quote:
Originally Posted by G8RAM View Post
OP

If there is a downside to a better valve angle I don't know what it would be?
Okay - thanks. So there don't seem to be any downsides.




Now I just need to know which CC to choose. They are offering 60-68cc Chambers. Which number should I choose to get the most gains in combination with my mild cam?
mike.nite is offline   Reply With Quote
Old 04-02-2012, 05:13 PM   #17
Ivan @ Southwest Speed
Southwestspeed.net

 
Ivan @ Southwest Speed's Avatar
 
Drives: '10 2SS/RS, '96 Z28
Join Date: May 2009
Location: Rio Rancho, NM
Posts: 11,585
My thoughts.....

http://www.510raceengineering.com/s2ls3-l92.html

Enjoy!
Ivan @ Southwest Speed
Ivan @ Southwest Speed is offline   Reply With Quote
Old 04-03-2012, 05:17 PM   #18
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
So far I'm realy interested in the TSP PRC heads. Just don't know which chamber size to go with. They offer 60-68cc.
mike.nite is offline   Reply With Quote
Old 04-03-2012, 06:27 PM   #19
2011WhiteSS
 
2011WhiteSS's Avatar
 
Drives: 2011 White 2SS
Join Date: May 2011
Location: Ohio
Posts: 106
Heads

Quote:
Originally Posted by The LSX Dr. View Post
Reher Morrison has some great heads available for the LS3.

http://www.rehermorrison.com/rmSale3.htm
Never go wrong with this suggestion!!

Let Darrin port and build you a set of heads and you'll never regret it.
2011WhiteSS is offline   Reply With Quote
Old 04-03-2012, 08:19 PM   #20
14pilot
Original Bumblebee Owner
 
14pilot's Avatar
 
Drives: 265hp ZX-14, 500hp Silverado, V-ROD
Join Date: Apr 2009
Location: Arizona
Posts: 1,386
With your cam selection, I don't think you are going to get much from any heads that the stockers won't already give you.
__________________
Quote:
Quote:
#5 - 2010 2SS/RS MN6 ABM #142-Silver Rallys-GFX / Med Titanium
My previous Camaros:
#4 - 1994 Z/28 6M Black over Arctic White / Graphite-Red Inserts - traded
#3 - 1981 Z/28 Bright Blue Metallic / Black - sold
#2 - 1970.5 RS Mulsanne Blue / Blue - endo crashed it and parted it out
#1 - 1967 RS Butternut Yellow w/ Black Bumblebee Stripe-RPO D91 / Parchment-Black - sold
14pilot is offline   Reply With Quote
Old 04-04-2012, 05:36 PM   #21
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Quote:
Originally Posted by 14pilot View Post
With your cam selection, I don't think you are going to get much from any heads that the stockers won't already give you.

Are you sure? There are quite a few good examples for nice gains - even with mild cams. Here is one:
http://www.camaro5.com/forums/showth...ighlight=gt-11

Also It's not just about the gains. It is also about WHERE those gains are (curve). I'd like to get some extra compression for a cleaner burn, better average power and torque.
mike.nite is offline   Reply With Quote
Old 04-04-2012, 06:19 PM   #22
brantley847
v It bites.
 
brantley847's Avatar
 
Drives: 2011 IBM 2SS/RS
Join Date: May 2008
Location: Orlando, FL
Posts: 3,402
Mast seems to be one of the most top quality heads I have seen to date.. but you also pay their price tag. They run about half the cost of a S/C and no exchange, I believe.
__________________
2011 2SS/RS
Performance: 439 RWHP A6: 226/236 Comp Cam, Kooks 1-7/8, CAInc, Borla S type, FTI Converter, Vmax TB, Rx Catch Can, Trans cooler, SLP 160 termo, Melling high volume, Eibach Springs/Sways 1" drop, Whiteline complete bushing kit.
Appearance:Smoked side markers and black bowties. Blk / Blue Carbon Fiber interior trim.

Next in order: F14s, 3.70 gears, DSS Axles, End links/Toe rods/trailing arms, Ported heads, S/C.







1100 7/02 Ordered
3800 8/09 Order produced
4200 8/13 Shipped
6000 8/24 HOME!
brantley847 is offline   Reply With Quote
Old 04-04-2012, 08:42 PM   #23
jrpxxii


 
jrpxxii's Avatar
 
Drives: 2010 Camaro SS/RS 427ci
Join Date: Jul 2009
Location: Bowling Green, Ky
Posts: 3,188
MAST Black Label is what I chose. GMHTP had a comparison of all of these heads not long ago and the MAST performed the best but all of these are great choices.
__________________
jrpxxii is offline   Reply With Quote
Old 04-04-2012, 09:16 PM   #24
MikeOD

 
Drives: 2010 M6 2SS
Join Date: Mar 2011
Location: Manchester, CT
Posts: 1,154
No mention of AI (Advanced Induction) yet...I'm thrilled with the quality of work done to my heads by them, the car runs AWESOME with the cam they spec'd to match the heads, and I will dyno it soon for numbers, I promise.
__________________

2010 Camaro SS M6. Heads/Cam/Intake/Headers/Exhaust/Suspension
MikeOD is offline   Reply With Quote
Old 04-06-2012, 06:07 PM   #25
mike.nite
 
mike.nite's Avatar
 
Drives: 2011 2SS L99, 2010 LT RS
Join Date: Mar 2010
Location: NY (USA) ZH (Switzerland)
Posts: 439
Thanks for the votes! Any feedback is highly appreciated.



Just talked to Matt from TSP and he suggests to mill their TSP PRC heads .030-.040" (63-64cc chamber volume) because my L99 short block has a lower compression than the LS3.

They want to get me up to about 11:1 static compression.

Is this a good idea? They told me that this way I'll get the most out of my mild cam setup.
mike.nite is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
TSP's PRC CNC ported heads VS Summit Racing CNC ported heads hunt Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 16 03-14-2012 07:41 AM
Opinions on aftermarket Cylinder Heads S3XPanther Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 20 12-17-2011 08:53 PM
New aftermarket LS3 heads. Ovenmitt Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 47 03-23-2011 06:56 AM
PRC LS7 Cylinder heads On A LS3/L99 Bore Nearing Productions! Jason 98 TA Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 15 12-01-2010 11:10 AM
World Warhawk LS1x / TEA Heads xssive99 V8 - Engine, Exhaust, Bolt-Ons, Tuning Equipment 0 11-19-2010 08:24 PM


All times are GMT -5. The time now is 05:31 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.