06-01-2019, 01:30 PM | #1 |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 995
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Recommendations for head/cam package for L99
At this point I am really considering doing a cam/head package. I have a L99 so I have to take the heads off, and while I am at it I might as well just upgrade the heads to something better. For now the car is a DD so I would like a package that could support DD usage and be reliable. If there are any heads that are completely assembled so I don't have to deal with installing the valve train that would be a big plus. I'd eventually have to get a TC as well but I don't know if that needs to be done before or after the cam, and if I can wait on the TC, like if driving the cammed car be horrible without one.
So what complete kits do you guys recommend? Not waiting to have to worry about piecing something together since I am not an expert, but will do the install. |
06-01-2019, 01:40 PM | #2 |
Drives: Victory Red Join Date: Jul 2017
Location: MD
Posts: 175
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I'll have some ported Ls3 heads available soon if interested.
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06-01-2019, 02:12 PM | #3 |
Drives: 2010 SS L99 Join Date: Sep 2018
Location: Missouri
Posts: 1,634
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If you get a mild cam, you don't need a converter. If you get any bigger than a Stage 2, you really need one to deal with cam surge and bucking at idle. You can get a converter even if you don't have an aftermarket cam, but the best thing to do is either do gears only, or a cam with a matching converter at the same time, or just do all 3 all at once like I did.
As for recommendations, GPI has complete kits. They have their Stage 1-4 kits, as well as a max package, all the way up to LLSR
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Previous PB:11.079 @ 122.99mph.. New setup time: TBD
The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371 |
06-01-2019, 02:51 PM | #4 |
Drives: 2011 Camaro SS Join Date: Sep 2017
Location: Peoria
Posts: 254
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I highly recommend GPI!
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2011 SS -GPI SS3 vvt, circle D 4c, 3.91 gears, solo mach xl exhaust, speed engineering headers, bo white ported throttle body, Roto fab intake, adm transcooler, elite catch can
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06-01-2019, 03:30 PM | #5 | |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 995
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Quote:
I already have 3.91 rear diff and other bolt ons installed. I'll check out GPI. Also any pros or cons for vvt? |
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06-01-2019, 08:46 PM | #6 |
Drives: 2010 Camaro 2SS/RS ABM 6M Join Date: Jul 2017
Location: Kansas
Posts: 617
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I am an LS3, but I am super happy with my TSP state 3 cam/ported heads package. Was easy to get everything from one place, and they are super helpful people whenever I have a question. I wasn't building off price alone, but they used to have a discounted package when getting a cam kit and head porting at the same time..made them very friendly on the wallet. I would give them a shout and explain what you wish to do, and they would get you going in the right direction!
They look
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2010 ABM 2SS/RS LS3 6 Speed -- Rotofab CAI | Speed Engineering 1 7/8" Longtubes w/ cat Delete | Magnaflow competition catback | TSP 231/246 cam| TSP/PAC .660" Spring Kit | TSP CNC Ported Heads | Bo White PTB | GPI Ported/RM Intake | 3.91's | BC Catch Can | MGW Shifter | BMR 1" Drop Springs | BMR Trailing arms/Toe Rods/Rear UCA Bushings | Pegasus Subframe Mounts
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06-01-2019, 10:08 PM | #7 | |
Drives: 2014 Camaro 1SS Join Date: Jun 2010
Location: MA
Posts: 103
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Quote:
You can definitely spend a lot of money and get some beautiful LS3 CNC'd/aftermarket casting heads. For a mild street build you may not see much more performance compared to the stock LS3 head since they already flow very well. One really nice thing about the aftermarket castings is you can get more piston to valve clearance due to better valve angle. A cam with overlap will bleed off compression. If you can it's good to bump up the compression ratio with a smaller chamber. After market heads let you do that more easily and still have good clearance.
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2014 1SS - BTR Stg3, GMPP CNC Heads, Kooks LTs & cats, Magnaflow 2.5" Street w/Res X, Z28 CAI
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06-02-2019, 12:03 AM | #8 | |
Drives: '23 LT1 A10 Join Date: Oct 2015
Location: Austin Texas
Posts: 995
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Quote:
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06-02-2019, 12:25 PM | #9 | |
Drives: 2016 SSupercharged, 2012 Camaro SS Join Date: Sep 2016
Location: Houston
Posts: 101
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Quote:
If you decide to come East, go see J-Rod or give Jaime a call, they'll take care of you.
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06-02-2019, 01:07 PM | #10 |
Drives: 2010 SS L99 Join Date: Sep 2018
Location: Missouri
Posts: 1,634
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Which cam did you go with grammy?
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Previous PB:11.079 @ 122.99mph.. New setup time: TBD
The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371 |
06-02-2019, 03:52 PM | #11 |
USA-1
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OP, KEEP VVT!
Honestly, even the smallest cam from GPI is gonna net you probably 70 hp, which isn't bad at all. If you are gonna do it, make sure to also grab an underdrive pulley and GPI's ported/rod modded intake manifold. The manifold will grab you 10-15 rwhp and should compliment those ported heads well.
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"A Camaro in the garage is safe, but that's not what Camaros are built for..."
R2C CAI / Apex Scoop / VMAX Ported TB / Speed Engineering LTHs / X-pipe / GPI port/rod-mod intake manifold / Circle D 3200 278mm Converter / 3.91 gears / DynoSteve tuned / 1LE Shocks/Struts/Toe Links / ZL1 Rear Sway Bar / Z/28 Trailing arms / Prothane Radius Arm & Subframe Bushings / BMR UCA Bracket, Steering rack bushing / B&M Tranny Cooler / RX Catch Can / Jannetty Tranny Dipstick / 2012+ Heater Hose / 2013+ Rearview Mirror / Fuel rail flip / Drake shifter / Oil Cooler Delete |
06-02-2019, 05:57 PM | #12 |
Drives: Camaro Join Date: Oct 2018
Location: Alabama
Posts: 673
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Different Dynos so take it for what’s its worth. Tap vvt2 (original not updated version) to a ss4 flycut picked up 20rwhp. I also added a rod mod, udp, 3.91s, and bigger TC at same time which all effect Dyno numbers to some extent. If I was going to do it once and it’s a DD I’d just pick a stage 3 from any of the major players.
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06-03-2019, 01:33 PM | #13 | |
Drives: 2014 Chevy SS Join Date: Nov 2014
Location: San Antonio, TX
Posts: 277
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Quote:
PM me if you'd be interested and for more details! https://www.texas-speed.com/p-1388-p...d-porting.aspx KW
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1995 Impala SS -- Heads/Cam LS3
1996 Impala SS -- 398ci LL Solid Roller LT4 2014 Chevy SS --- 429ci Hydraulic Roller LS3 |
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