My LS1 Committed Suicide Last Night! How?
Thread Starter
TECH Regular
Joined: Dec 2012
Posts: 414
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From: San Diego
My LS1 Committed Suicide Last Night! How? Ok so i have a bone stock 98 Z28 M6 and when i was driving home last night on the freeway i heard a loud knock and i lost oil preasure. Next i saw smoke and heard metal fly off under the car as it died. After i got it home today i looked under it and i have two 1" holes in the block and i found a piston ring stuck under the car. How in the hell does this happen? I think it threw a rod but i dont understand how. All the fluids were good and it was driving fine shortly before. Ill post pictures tommorrow. Im looking for input so i can prevent this from happening in the future. Oh and the car has a 173,000 miles on it and im the third owner. Guess its time to build a 383.
Ok so i have a bone stock 98 Z28 M6 and when i was driving home last night on the freeway i heard a loud knock and i lost oil preasure. Next i saw smoke and heard metal fly off under the car as it died. After i got it home today i looked under it and i have two 1" holes in the block and i found a piston ring stuck under the car. How in the hell does this happen? I think it threw a rod but i dont understand how. All the fluids were good and it was driving fine shortly before. Ill post pictures tommorrow. Im looking for input so i can prevent this from happening in the future. Oh and the car has a 173,000 miles on it and im the third owner. Guess its time to build a 383.
remember those rod bolts I mentioned to you on the pm.some upgrade to the katech ones some to the arp.
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Joined: Jun 2011
Posts: 1,343
Likes: 8
From: Katy, TX
Stroking an engine and "tight budget" are on opposite ends of the universe.
Good luck and keep us updated with whatever you choose.
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383ci make great HP but why not just go with a 408? Benefit more from it 
same thing happened to a friend of mine. he has a Buick GS 455 that had a fresh motor. we just got on the highway, he ran it up to about 4K it knocked for a split second and boom. he thew a rod just like you. till this day we aren't sure why it happened, maybe a bad build/clearances, i don't know. just be greatful that yours had the milage that it did before it let loose. gl with your new build.
Thread Starter
TECH Regular
Joined: Dec 2012
Posts: 414
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From: San Diego
As far as assisted suicide its probably true. Im the third owner and i maintain it very well but hey god only knows what its been put through. Ok so since i need a new motor and i want to stroke it because i am a fan of more cubes can someone explain to me what is a good size to go to without destroying the bank completely. This will be a street strip car.
170k isnt "a ton".... i mean if it was beat on then yes...
We just wrapped up a Procharger, ECS blower cam, ls6 intake manifold, lingenfelter p oil pump, new timing gears and chain, and other supporting mods such as seals and gaskets on my friends 190k mile, 99, c5...
Of course we did a new fuel pump and injectors...but its making 563 rear wheel on 9 psi.
We have a healthy tune on it, and have since added meth injection to help stay conservative.
Alsi, you don't need a stroker to make power.
We just wrapped up a Procharger, ECS blower cam, ls6 intake manifold, lingenfelter p oil pump, new timing gears and chain, and other supporting mods such as seals and gaskets on my friends 190k mile, 99, c5...
Of course we did a new fuel pump and injectors...but its making 563 rear wheel on 9 psi.
We have a healthy tune on it, and have since added meth injection to help stay conservative.
Alsi, you don't need a stroker to make power.