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Question regarding the LS3

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Old Dec 29, 2013 | 06:29 PM
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Default Question regarding the LS3

Does this motor have the same valve guide issues as the LS7?
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Old Dec 29, 2013 | 06:41 PM
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Originally Posted by stp357
Does this motor have the same valve guide issues as the LS7?
No.
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Old Dec 29, 2013 | 06:51 PM
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No the ls3 does not have any motor issues. Butt in my opinion the LS3 is better motor .
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Old Dec 29, 2013 | 06:54 PM
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Asked and answered in previous threads--no issues bro.
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Old Dec 29, 2013 | 07:08 PM
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Thanks guy's. Sorry about the double post. Looking to get into a Vette soon and wanted to stay away from a time bomb.
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Old Dec 29, 2013 | 07:35 PM
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Originally Posted by stp357
Thanks guy's. Sorry about the double post. Looking to get into a Vette soon and wanted to stay away from a time bomb.
You did your homework before spending $.

My Z06 guides were shot at 43,000 miles. Didn't feel good about all the other issues and sold it to a dealer.

I now sleep well at night with my 13 GS LS3. Great car!!
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Old Dec 29, 2013 | 07:39 PM
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Originally Posted by 2k Cobra
You did your homework before spending $.

My Z06 guides were shot at 43,000 miles. Didn't feel good about all the other issues and sold it to a dealer.

I now sleep well at night with my 13 GS LS3. Great car!!
I really like the z06, but do not want to be concerned with it blowing up on me, so I am leaning heavily towards the Grand Sport. I really don't need 505hp, although they would be nice to have.
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Old Dec 29, 2013 | 10:26 PM
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Originally Posted by stp357
I really like the z06, but do not want to be concerned with it blowing up on me, so I am leaning heavily towards the Grand Sport. I really don't need 505hp, although they would be nice to have.
Spend $10k to have a supercharger installed and you'll be close to 600hp with money to spare
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Old Dec 30, 2013 | 01:36 PM
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Originally Posted by stp357
I really like the z06, but do not want to be concerned with it blowing up on me, so I am leaning heavily towards the Grand Sport. I really don't need 505hp, although they would be nice to have.
headers and a tune will get you "most" of a Z06's straight line pulling power. I got around 440rwhp. Z06 does about 460rwhp stock IIRC.

Here's my acceleration video of my car and then I'll put up a z06 acceleration video...pretty close. Start them together and you'll see.

LS3 acceleration with headers/tune (non-Z51/manual)


Stock LS7 Z06
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Old Dec 30, 2013 | 01:44 PM
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ls3 is a great motor m no major issues like the LS7 is plagued with.
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Old Dec 30, 2013 | 06:18 PM
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We went from a C5 (350 hp LS1) to a 2006 C6 (400 hp LS2) and now a 2009 C6 (436 hp LS3).

The LS3 is the first Corvette engine that makes the car feel as fast as it should be. I absolutely love ours, and they have been quite reliable on the street. On a road course, with race tires, they seem somewhat prone to failures caused by oil starvation in long turns. For me, that's not an issue.
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