2002 C5Z or 2005 Base auto...differences
10-16-2018, 01:38 PM
#1
Team Owner
Thread Starter
2002 C5Z or 2005 Base auto...differences
As in the build potential?
How close are the 2 in stock form?
What is the max each motor can take as being NA or S/C?
Purpose is same as my current car. A fun street car.
How close are the 2 in stock form?
What is the max each motor can take as being NA or S/C?
Purpose is same as my current car. A fun street car.
10-16-2018, 03:56 PM
#2
Instructor
2005 corvette
10-16-2018, 07:19 PM
#4
Melting Slicks
Member Since: Jan 2014
Location: Rio Rancho, New Mexico
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C6 of Year Finalist (appearance mods) 2019
An '08+ LS3 takes the win, but stock for stock an LS2 equipped C6 isn't keeping up with a C5Z. Mod potential is near identical.
Last edited by Verrückt ZR1; 10-16-2018 at 07:22 PM.
10-16-2018, 07:56 PM
#5
Safety Car
my LS2 car easily beat friends 09 LS3 when they were both stock and as they progressed with modifications.A stock 02 C5Z is no faster than a stock LS2.2 weeks ago at track my car went 10.10 with a 1.39 60ft running into a 30mph head wind all day.I easily put a hurtin' on the 2 Demon's that were there.they were running .40 and .50 slower
Last edited by irok; 10-16-2018 at 07:57 PM.
10-16-2018, 09:38 PM
#7
Race Director
my LS2 car easily beat friends 09 LS3 when they were both stock and as they progressed with modifications.A stock 02 C5Z is no faster than a stock LS2.2 weeks ago at track my car went 10.10 with a 1.39 60ft running into a 30mph head wind all day.I easily put a hurtin' on the 2 Demon's that were there.they were running .40 and .50 slower
The 05 would have a 4 speed auto, and the weaker rear end. If you're buying to build, an 05 auto wouldn't be on my shopping list. 06+ vs c5z, that's a bit more complicated.
I would probably get the c5z since they're lighter. I'd also probably buy a slightly modded ons with long tubes and the like
10-17-2018, 02:11 AM
#8
Safety Car
I have the video for any of you doubters that have never been to a track.go to any track in the country and see that there is not much of a difference between the LS2 and LS3
10-17-2018, 10:11 AM
#9
Race Director
10-17-2018, 12:07 PM
#11
Melting Slicks
Member Since: Jan 2014
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C6 of Year Finalist (appearance mods) 2019
Sounds like the LS3's need a driver mod. There's nothing wrong with the LS2, but the LS3 is the superior engine, and all things equal will win the race every time.
10-17-2018, 03:49 PM
#12
Safety Car
Not at all just look at the "FAST LIST" here on the forum.Lots of LS2 cars are faster than LS3 cars and no amount of driver mod will change that.The 2 Demon's I put a hurtin' on probably thought they needed a "driver mod"
10-17-2018, 06:52 PM
#13
Melting Slicks
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I faced the same decision 3 years ago and went with the 05 for the build potential. If planing to stay stock, I would choose the C5 Z. Remember, with the Z, you are also getting better suspension parts and differential all stock. Now, as far as the interior goes, the C5 looks way outdated compared to the C6. All your 05 auto will need is a better flowing air intake, a ported fast 102 and an engine and tranny tune to be all good. I built mine with full bolt ons, including a stock converter friendly 224r cam, and put down 419/402 on the dyno. Considering the valve train loss for an automatic, that roughly equates to 495ish to the crank.
10-18-2018, 08:35 AM
#14
Race Director
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C5Z hands down... Mine actually had a built LS2 414 ci stroker w a 250 shot... It was a beast! Gawd I miss that car.