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LS2 in Burned out Trailblazer SS

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Old 06-21-2012, 01:59 AM
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Roll the dice! Get it for a quick buck and go from there.
Old 06-21-2012, 05:16 AM
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It wil be fine once you clean it up. I know of people that have reused an Ls motor after a fire in their next vehicle with no problems.
Old 06-21-2012, 08:55 AM
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If you can get it super cheap or free, go for it.

At the very least you could entertain us with what the internals of the engine looks like if it all turns out fried
Old 06-21-2012, 10:28 AM
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Originally Posted by ramairws6
Hahahaha! What a waste of time and money imo. Goodluck and have fun with all the issues that will pop up down the road...
What possible out of the ordinary issues would pop up down the road that are any different than any other used motor?
Old 06-21-2012, 12:31 PM
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Talking Uh huh...

A trip to the car wash, a couple cans of Gunk........Like new!
Old 06-21-2012, 02:57 PM
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Well we found a guy that has some 243's off of his vette and is only asking 300 for them
Old 06-21-2012, 03:50 PM
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Originally Posted by got milk??
What possible out of the ordinary issues would pop up down the road that are any different than any other used motor?
Well the aluminum on this thing has definitely been compromised whether it looks like it or not. To me it's like tripping over a $20 dollar bill to pick up a $5
Old 06-21-2012, 03:55 PM
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I might clean it up and make it a coffee table,

but I wouldn't use any part of that in a working engine.
Old 06-21-2012, 04:00 PM
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Heat does funny things to metal. Once you get over a certain temp metal moves a bunch and it does not necessarily go back to where it was. I would be afraid of warpage and distortion personally.
Old 06-21-2012, 06:53 PM
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Originally Posted by 409CISecondGen
I might clean it up and make it a coffee table,

but I wouldn't use any part of that in a working engine.
That's a great Idea!!
Old 06-21-2012, 07:39 PM
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This thread is comical to me.

Y'all know that external fire didn't get hot enough effect any of the metal in that motor right? It gets way hotter inside the combustion chamber than anything that was burning under that hood. Most of that stuff on top of the motor is the insulation from under the hood, it's designed to act as a fire blanket in those situations. The big plastic fasteners melt and it drops down and smothers the fire on the top of the motor. I will bet a Yankee Dollar that you can clean that thing up down to the long block, swap over the intake and controlls from another vehicle and that motor would run flawlessly for a couple of hundred thousand miles.
Old 06-21-2012, 09:45 PM
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Originally Posted by Gunslinger09
This thread is comical to me.

Y'all know that external fire didn't get hot enough effect any of the metal in that motor right? It gets way hotter inside the combustion chamber than anything that was burning under that hood. Most of that stuff on top of the motor is the insulation from under the hood, it's designed to act as a fire blanket in those situations. The big plastic fasteners melt and it drops down and smothers the fire on the top of the motor. I will bet a Yankee Dollar that you can clean that thing up down to the long block, swap over the intake and controlls from another vehicle and that motor would run flawlessly for a couple of hundred thousand miles.
Yeah, the 1100 to 1400 degree fuel fire probably didn't really hurt anything. Must have burned a good 15 to 20 minutes to melt the material out of the damper. I'll see your Yankee dollar, and raise you a buffalo nickel. She's toast.
Old 06-22-2012, 01:42 AM
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OP, Goodluck if you buy it, you're going to need it.
Old 06-22-2012, 03:53 AM
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Originally Posted by Che70velle
Yeah, the 1100 to 1400 degree fuel fire probably didn't really hurt anything. Must have burned a good 15 to 20 minutes to melt the material out of the damper. I'll see your Yankee dollar, and raise you a buffalo nickel. She's toast.
It didn't get anywhere near that hot. Aluminum melts at a little over 1100 degrees, if it had gotten that hot the block would have slagged into a blob. I know a guy right now reused a motor from his 2001 Camaro SS that Burnt up. It's now in a FRC Corvette and makes a thousand HP at the rear wheels.
Old 06-22-2012, 04:19 AM
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Buy it for $100. Send a head in and see if it's straight. If it is, then It might be salvagable. Remove the internals and have the block checked for warpage. If it's messed up, then recover your $20 in aluminum.
Old 06-22-2012, 08:48 AM
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Originally Posted by Gunslinger09
It didn't get anywhere near that hot. Aluminum melts at a little over 1100 degrees, if it had gotten that hot the block would have slagged into a blob. I know a guy right now reused a motor from his 2001 Camaro SS that Burnt up. It's now in a FRC Corvette and makes a thousand HP at the rear wheels.
It might take 1100 to melt it but it doesn't take 1100 to distort it.

Even then I would still take a chance for 100 bucks.

In this situation its the length of time of the burn. If it was on fire for 2 or 3 minutes then somebody put it out it might be ok to tear down and rebuild into something. If it was on fire on the side of the road for like 20 minutes straight until a fire truck could get there and put it out, then i wouldn't chance it.
Old 06-22-2012, 03:12 PM
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It looks like it has a low-profile intake. I've heard those are more prone to heat-soak. I'd ditch that asap.
Old 06-22-2012, 03:30 PM
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Originally Posted by MasterTomos
It looks like it has a low-profile intake. I've heard those are more prone to heat-soak. I'd ditch that asap.
Hahahahahaha
Old 06-22-2012, 03:30 PM
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you guys are nuts, if it was close and for a good price id scoop it up for sure
Old 06-22-2012, 06:40 PM
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Originally Posted by Gunslinger09
It didn't get anywhere near that hot. Aluminum melts at a little over 1100 degrees, if it had gotten that hot the block would have slagged into a blob. I know a guy right now reused a motor from his 2001 Camaro SS that Burnt up. It's now in a FRC Corvette and makes a thousand HP at the rear wheels.
Actually aluminum melts at 1220 degrees. It is the second most malleable metal, second only to gold. A candle burns at 1100 degrees. But it won't melt anything but wax, because of the size of the flame. You have to try to comprehend the size of this total vehicle fire, with all the flamables, to understand the temp that this motor actually saw. Everything around the engine was producing fuel for this fire, that lasted some time. It's not the temperature here that is he issue, as I can guarantee you this was hotter than 1220 degrees, but the length of time that it was hot. And then it was sprayed immediately with cold water to extinguish it, adding more of a element of carnage. As I posted previously, I had an opportunity to purchase an ls3 from a camaro with under 10k. It was an interior fire under dash. The engine compartment had zero fire. The heat from the interior that was on the other side of the fire wall, melted he intake into almost a liquid state, and the coils were severely distorted, as well as wire loom. It seemed like a deal, and I took cash with me, but upon pulling a valve over, I realized that The valve cover was warped. The oil looked fine. Everything looked good, but there was evidence that there was a good chance for other problems. I walked away. He sold the engine the next morning. This engine looked great. He even had a new ls3 intake already bought, to throw in the deal. It might have worked out for the purchaser, I don't know. I guess there's a chance that this trailblazer long block is usable. I personally don't want the headaches.


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