2013 427 New Engine
Thread Starter
Advanced
Joined: May 2020
Posts: 51
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From: D/FW Texas
2013 427 New Engine
Hello,
I am a Newcomer. I am emailing with a GM dealer about purchasing C6 427 1SB. When asked about any modifications they replied it has a new engine.
One owner car, 24k miles. Should I walk away?
TIA
I am a Newcomer. I am emailing with a GM dealer about purchasing C6 427 1SB. When asked about any modifications they replied it has a new engine.
One owner car, 24k miles. Should I walk away?
TIA
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From: Washington Township Michigan
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Not necessarily..................... ask them the reason that the engine was replaced, and more details on that repair.
A few of the LS7 engines had issues with connecting rods and required engine repairs/replacements, but these usually occurred a lower mileage than the 24K you listed here.
Best for you to provide more details and see exactly what may have led to an engine replacement before just "walking away" from it.
A few of the LS7 engines had issues with connecting rods and required engine repairs/replacements, but these usually occurred a lower mileage than the 24K you listed here.
Best for you to provide more details and see exactly what may have led to an engine replacement before just "walking away" from it.
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From: Prosper TX/Austin TX
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The LS7 has issues with valve guides & dropping valves as well as the titanium coating on the rods. It’s quite a bit more than a few. As they stated ask why the engine was replaced & if they simply replaced it with another LS7 it’ll have the potential to have the same problem as GM never fixed the issue.
That being said if the rest of the car is solid & worth what you want to pay just plan for about $2,500 - $4,500 for upgraded fixed heads.
That being said if the rest of the car is solid & worth what you want to pay just plan for about $2,500 - $4,500 for upgraded fixed heads.
Pro
Joined: Aug 2017
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From: "Sweet Home" Alabama
I am the 2nd owner of a C6 427 purchased from a Chevrolet Dealer with about the same millage when purchased (21k miles), mine was a "Certified Pre-Own", what kind of warranty are they providing with this so called new engine?
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From: Wayne Township WI
A brand new engine, so it's essentially a new car. 
Personally, I'd find a new LS7 a big positive and genuine find if I were to be the 1st owner.
And yes heads can be rebuilt, for peace of mind.
Budget $2-$4k for a rebuild and this car's golden.
Personally, I'd find a new LS7 a big positive and genuine find if I were to be the 1st owner.
And yes heads can be rebuilt, for peace of mind.
Budget $2-$4k for a rebuild and this car's golden.
Thread Starter
Advanced
Joined: May 2020
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From: D/FW Texas
Thanks everyone! I am appreciating this forum already! I will reach back out to the dealer for details about the reason for the replacement. I'll also inquire about the engine being brand new or re-manufactured.
More to come!
More to come!
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The other thing to ask is when was the engine replaced, by whom, and what is the warranty on the engine. I had an LS1 engine replaced by GM under warranty & they only warrantied it until the end of my factory warranty which was 6 months or 2800 miles at the time of replacement. I sold the car a month later. It always bothered me they wouldn’t stand behind a new engine longer than that. That was about 20 years ago so maybe they’ve changed their policy, but I’d get it in writing.
Drifting
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From: Covington KY
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I passed on a couple of cars that had the engine replaced like that (LS7) . I simply didn't want a used car that had been repaired like that, I wanted an original car. You may find it has a better warranty than one with the original engine, ultimately it's your decision. You can still get a factory extended warranty on a 2013, maybe you can negotiate with the dealer to get a warranty like that.
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From: Melbourne, FL
These aren't survivor 1963 cars. A non original engine has no negative effect on price. Perception, maybe to some. But not price, at Lear not for 40 years.
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Last edited by Trebor; May 31, 2020 at 08:11 PM.
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I disagree. Just try selling a Vette to a Corvette-centric dealership like Kerbeck or MacMulkin and tell them the motor in it isn't original to the vehicle. See what happens to your trade offer...Has nothing to do with "40 years ago". It's about the perception and marketability of the trade or in this case, purchase.
Drifting
Joined: Aug 2004
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Exactly, I agree. So in this case, the buyer is aware of this and can use it to his advantage. The car/and LS7 are probably great, just spin the narrative and try to get it for less. That's all I'm suggesting.
Drifting
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From: Covington KY
2022 C6 of the Year Finalist - Unmodified
Sorry but I disagree with you on that. On this particular corvette I think it mashes a huge difference but that's just my opinion.
Team Owner
Joined: Apr 2008
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From: South Carolina
Well in the case of the ls7 you may rather have a 2019 or 2020 engine over the OEM motor that dropped a valve running 35 mph in town and only had 5k miles on it....
