LS3 or L92 Heads + L76 Intake on a LS2 CTS-V - LS1TECH

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LS3 or L92 Heads + L76 Intake on a LS2 CTS-V

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Old 07-19-2012, 09:41 PM   #1
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Default LS3 or L92 Heads + L76 Intake on a LS2 CTS-V

Hey guys--

Right now, I have a stock LS2 with unported 243 heads. Cam is 223/236 .612/.610 115 LSA (TruTorq Level 3). I thought I'd ask for suggestions regarding cheap (< $800) ways to increase the amount of power I'm producing.

In terms of bang for the buck, it looks like I might be able to find a set of LS3 or L92 heads and an intake for as low as $800. Alternately, I could have my existing heads and/or intake ported, but I'm not sure whether that's worthwhile. Next year, I'd like to try to find a used Maggie and have it rebuilt or make my own TVS1900 kit. I don't plan on going with a forged bottom end (I'd buy a V2 or swap the entire motor out before that).
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2006 CTS-V - 422 RWHP/383 RWTQ/3795 lbs - Complete Mod List
- G-Force 9" IRS with PST 3.75" carbon fiber driveshaft and 35 spline axles
- Strange Engineering S-Trac with Pro Iron case and 3.50 ratio
- KW Variant 3 with Swift 120/160 springs, Banski RSMs, Custom FK LSMs
- 5-lug 19x11/20x12" Forgestar F14s, KRC adjustable power steering
- RacingBrake 355/365mm 2pc rotors, ET800 pads, CTS-V2 calipers
- McLeod RXT, Custom McLeod 1373, Comp TRuTorq L3 cam
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Old 07-19-2012, 10:52 PM   #2
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The thing with the heads is gonna be compression, if you get them ported your gonna want them milled to bump the compression to make a little extra power. That might hurt your down the road if you plan to boost it cause your thinning the deck and raising the compression out of boost friendly ranges.

Personally Id just grab some L92s and an ls3 intake. Just get with a shop to pick a head gasket and studs if you definetly wanna boost it later on.
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-2005 CTS-V, Kooks with HF Cats, Comp 232/236 .0600 114+2, HSW Wet kit...496hp/509tq. SOLD
-1993 Mustang Coupe-LS1/T56 Swap. 234/246 EPS cam, LS6 Intake, Kooks L/T, 4.10s, Mcleod Twin Disc. 417rwhp/389tq PARTED
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Old 07-19-2012, 10:58 PM   #3
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Any idea what I might make with the L92 heads, and if you have the time, could you try to educate me a little bit regarding the casting numbers? I found the following page, but it's more of a reference guide with no explanation offered.

http://outintheshop.com/faq/casting/heads.html
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2006 CTS-V - 422 RWHP/383 RWTQ/3795 lbs - Complete Mod List
- G-Force 9" IRS with PST 3.75" carbon fiber driveshaft and 35 spline axles
- Strange Engineering S-Trac with Pro Iron case and 3.50 ratio
- KW Variant 3 with Swift 120/160 springs, Banski RSMs, Custom FK LSMs
- 5-lug 19x11/20x12" Forgestar F14s, KRC adjustable power steering
- RacingBrake 355/365mm 2pc rotors, ET800 pads, CTS-V2 calipers
- McLeod RXT, Custom McLeod 1373, Comp TRuTorq L3 cam
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Old 07-19-2012, 11:23 PM   #4
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I believe you want 823 or 5364 or 821 casting heads. With L92s/LS3s and yoru cam witha stock ls3 intake id imagine 420-430rwhp with a really good tune. Thats if the cam only numbers in your sig are accurate to the mods in your sig which seems low. Normally id say 440 or so.
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-2003 10th Anniversary Cobra, Wiseco Pistons, Manley H-Beams, ARP everything, 98 Cobra Intake Cams, Hellion T76 Turbo, TH400 with Trans brake, UCC 3800 stall, Dynotech Chromoly DS, Built Solid Rear, 35 Spline Axles, Spool, Full Suspension, AIS Dual Nozzle Meth Kit. SOLD, thank god
-2005 CTS-V, Kooks with HF Cats, Comp 232/236 .0600 114+2, HSW Wet kit...496hp/509tq. SOLD
-1993 Mustang Coupe-LS1/T56 Swap. 234/246 EPS cam, LS6 Intake, Kooks L/T, 4.10s, Mcleod Twin Disc. 417rwhp/389tq PARTED
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Old 07-20-2012, 12:55 AM   #5
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Quote:
Originally Posted by itsslow98 View Post
I believe you want 823 or 5364 or 821 casting heads. With L92s/LS3s and yoru cam witha stock ls3 intake id imagine 420-430rwhp with a really good tune. Thats if the cam only numbers in your sig are accurate to the mods in your sig which seems low. Normally id say 440 or so.
Numbers in my signature are old and therefore invalid. I'll be getting the car retuned on the 3rd.
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2006 CTS-V - 422 RWHP/383 RWTQ/3795 lbs - Complete Mod List
- G-Force 9" IRS with PST 3.75" carbon fiber driveshaft and 35 spline axles
- Strange Engineering S-Trac with Pro Iron case and 3.50 ratio
- KW Variant 3 with Swift 120/160 springs, Banski RSMs, Custom FK LSMs
- 5-lug 19x11/20x12" Forgestar F14s, KRC adjustable power steering
- RacingBrake 355/365mm 2pc rotors, ET800 pads, CTS-V2 calipers
- McLeod RXT, Custom McLeod 1373, Comp TRuTorq L3 cam
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Old 07-20-2012, 12:58 AM   #6
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the guy that had this setup made 440rwhp
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Old 07-20-2012, 12:58 AM
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