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LSX454 ALL Blowed Up? Video

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Old Nov 6, 2016 | 05:00 PM
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Default LSX454 ALL Blowed Up? Video

Back story,

Have had the car for a couple months. Tunes always been alittle bad but it was always just Rich.

Ya nitrous, buuuuut I havent used it only tested when bought and it ran great. Havent used it since.

Now, I had the radiator break, got transmission fluid in the coolant and vis versus. replaced the radiator swapped the fluids. I added Prestone flush to clean the car out a bit. I removed the thermostat to more freely allow the coolant to move through the engine. Ran a few errands and at first I heard some squeaks but at the end of the couple errands it got bad.

I went home removed the belts and this is what it sounds like with no belts. My AC tensioner is bad and the engine tensioners also seem bad buuuuuut the engine shouldnt squeal like that. ESPECIALLY with no belts, so in my mind Im not trying to think as to what would be spinning and making that noise.

Whats the best plan of action here? Pull engine for rebuild or what?

Ignore the slow start up The engine has always done that and Im just too lazy to replace the starter when I am probably looking at a new engine.

OH AND THE OIL: Clean, normal dark gold color. No shinny bits, no metal, didnt smell or taste like coolant.


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Old Nov 6, 2016 | 05:21 PM
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Remove all 8 spark plugs and do a compression check. You may not get a piston to move to TDC......broken rod.

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Old Nov 6, 2016 | 05:22 PM
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If you rev it a little tiny bit does that clacking sound speed up with the rpm increase....?

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Old Nov 6, 2016 | 05:23 PM
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Maybe drain some oil out of the oil pan drain port....see if there's any metal in it.

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Old Nov 6, 2016 | 05:24 PM
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Could also pop both valve covers, see if all is good up top.

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Old Nov 6, 2016 | 05:33 PM
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I revvd it up alittle and the piston slap noise got better. But the tune is so off that it has a hard time starting or running in general.
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Old Nov 6, 2016 | 05:55 PM
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Why would you even run the engine if the tune is shitty?
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Old Nov 6, 2016 | 08:59 PM
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That thing sounds like ****. Get a freaking tune man you obviously have enough money to for a 454lsx c6 vette so I'm sure you can swing a $500 tune.
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Old Nov 6, 2016 | 09:22 PM
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Originally Posted by MY_2K_Z
That thing sounds like ****. Get a freaking tune man you obviously have enough money to for a 454lsx c6 vette so I'm sure you can swing a $500 tune.
That was the plan, i had an appointment setup but once I blew my radiator I needed to fix that. I literally drove the car once after fixing the radiator and now this.

I figure at this point im going to opt to either pull the engine and send it to one of the fine sponsors or simply buy a 427 shortblock. I want to go supercharged and now I guess i get to start building that motor instead of enjoying this and driving it while i build that one
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Old Nov 7, 2016 | 08:05 AM
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Originally Posted by LS6427
Could also pop both valve covers, see if all is good up top.
This is the first thing I would do.
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Old Nov 7, 2016 | 10:07 AM
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Default Lifter "T" bar button

Yes, I agree with KCS, inspect for valve opening/lift.

The sound of "miss-fire" ?

I have seen the Lifters turn in the LSX iron blocks.

My first LSX experience found problems with lifter fitment upon pre-assembly test.

I "hear" starter loading, caused by loose rocker ?

Lance
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