Generation IV Internal Engine - LS2 in Burned out Trailblazer SS

http://i938.photobucket.com/albums/ad229/athruz02/MIsc/0620121250.jpg

We were searching the junkyard today for Nova parts and came across a Trailblazer SS that had caught fire ,but the engine was still in the car. i was wondering if the engine would be safe to take and rebuild and use in our Nova. Can somebody help me out?

We are mostly after the heads but if the engine would be okay to build then we thought about buying it

I woudn't touch that with a 10 foot pole....

I woudn't touch that with a 10 foot pole....

For what reason????

Dude that thing is done. Everything has heat stress, melted sensors r fucked. Dont go any further than just looking at it.

Dude that thing is done. Everything has heat stress, melted sensors r fucked. Dont go any further than just looking at it.

i couldn't even take the 243 heads?

That looks like one helluva fire man. I would be a bit skeptical about using anything from it. Maybe the bottom might still be good though. May be worth the purchase just to disassemble and assess from there.

James

Due to the fact that NONE of the aluminum parts on the outside of the motor are melted, the inside will be fine with some work. The heads will need a valve job, new seals and get new springs while your at it. None of the plastic shit is fit to use but the internals of the motor won't be hurt.

Bullshit. Look at everything melted on top of the heads. Imagine that intake melting and going down the ports. Not including everything else thats melted inside the block like knock sensors, valley cover parts, cam crank sensors, Rubber seals etc. That shit is toast period.

If you wanna piss money away on buying a pile of burnt ass paper weights I can sell you some of those!

Plastic melts at a much lower temp than aluminum and last time I checked plastic doesn't adhere to aluminum. We already chipped at the plastic and it comes off. We can replace seals and sensors. I saw no evidence of fire in the engine bay just heat related stuff. It was a fire in the interior.

Looks like everything metal is in good shape. If the deals right I would jump on it as a spare engine to rebuild. LS2 blocks arn't real cheap or a dime a dozen either. I say give it a shot if the price is right.

heads block nd rotator are fine id put money on it, where is it located? if its close to me id buy it if it was cheep.

It's in Arizona, maybe the 112 degree heat melted the intake lol

Intake would have melted into the valves.

i would imagine the temps it reached internally due to the fire would be know more than what it sees during normal running of a combustion engine. the damage would be on the outside of the block. for the right price, id be all over it

well good luck. you can get a set of 243 heads all day long for $400 that you dont have to put any work into and it aint been in a damn fire.

well good luck. you can get a set of 243 heads all day long for $400 that you dont have to put any work into and it aint been in a damn fire.

For $150 for the pair plus the cost of a valve job would be around $450 total. It's still a savings of $350. GMPP sells them for $378 each brand new.

id offer 100 bucks for the engine. take it home and dissasemble it, as long as the block, rods, crank and pistons check out at a machine shop have them rebuild it for about 900 bucks. and you can melt the plastic back out of the heads and off the block for that matter its no big deal once you tear it all apart and clean it all up its worth 100 bucks to check it out

Hahahaha! What a waste of time and money imo. Goodluck and have fun with all the issues that will pop up down the road...

Interior fire? Lol. Melted the rubber out of the damper. If it hasn't been covered, it's full of rainwater. Walk away, bro. I wouldn't haul it home if it was free. I had an opportunity to buy an ls3 out of a camaro that had an interior fire, with under 10k, and it Had a melted intake, and coils. That blazer your looking at has been very, very hot.

Nonsense. If the hard parts are good, and you can get it for a decent price, go for it. I pulled an ls1 out of a camaro that had an engine fire and spread all the way to the rear bumper before it was put out.

The fire was so hot the valve covers started to melt. I drained 8 gallons of water out of the engine after I pulled it. Guess what? Everything south of the valve covers was fine. Had the heads milled and the bores honed and it's still running 4 years later.

Roll the dice! Get it for a quick buck and go from there.

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.

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 :lol:

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?

A trip to the car wash, a couple cans of Gunk........Like new!:smokin2:

Well we found a guy that has some 243's off of his vette and is only asking 300 for them

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

I might clean it up and make it a coffee table,

but I wouldn't use any part of that in a working engine.

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.

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!!

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.

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.

OP, Goodluck if you buy it, you're going to need it.

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.

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.

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.

It looks like it has a low-profile intake. I've heard those are more prone to heat-soak. I'd ditch that asap.

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:gruffy:

you guys are nuts, if it was close and for a good price id scoop it up for sure

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.

Metal conducts heat guys. Internals are most likely melted. Serious waste of time trying to screw with jt

Metal conducts heat guys. Internals are most likely melted. Serious waste of time trying to screw with jt

Internals melted? That's a funny one.

Internals melted? That's a funny one.

I am pretty sure you know what I mean by that. I'll just leave it at that

Okay well you can all stop arguing about what we should do because we got 243's off of an 01 LS6 Z06 Vette :)

http://i938.photobucket.com/albums/ad229/athruz02/LS%20LQ4/007.jpg

Doh! You should've bought it if it was under the $300 you paid on the heads.