Just got a ls1 have bad problem.

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Apr 13, 2004 | 02:54 PM

zeeya94

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From: Myrtle Beach SC

Just got a ls1 have bad problem.

Ive been running my LT1 car for the past 7 years. I just got a ls1 car. Due to my lt1 is more of a race car now. I wanted something I can drive everyday and have fun. I got a knocking sound from the engine it has 100400 miles on it. I pulled all the push rods. None were bent. I put it back together. Removed the belts the noise is still there. At first it sounded like it was under the intake. I got under the car and its louder. I rev it up and thenoise speeds up with the engine. Its holding great oil pressure. Im thinking craked flywheel or rod bearing. What could this be?

Apr 13, 2004 | 02:58 PM

cstchevy

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From: oklahoma

could it be the legendary piston slap that plague most ls1 cars.

Apr 13, 2004 | 03:32 PM

zeeya94

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From: Myrtle Beach SC

Well Ive been working on this car all day. I bought it wrecked. Im fixing it now. It wasnt running when I got it. I just drove it down the road with the ticking. I got on it a little bit and the noise went away. I came home let it sit. Then let my wife drive it. No noise to be found now. It musta been sitting for a while and needed the lifters pumped up.

Apr 13, 2004 | 03:36 PM

ddelallata

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sounds like piston slap to me.

Apr 13, 2004 | 03:39 PM

JoSeY

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From: Your Reality Check Bounced...

keep an ear out...that piston slap will come and go...quite irritatingly. I would suggest a change of oil to royal purple 10w-30 (use it in my bird and never have had the piston slap) I say royal purple because i've used it since I bought the car w/a little over 28,000 miles and not once have I had piston slap. I've got 115,000 on her now.

Some people will say no use this or that....decide whatever I'm just giving u MY results.

Apr 13, 2004 | 03:45 PM

zeeya94

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From: Myrtle Beach SC

Ive never heard piston slap that loud. It was loud. But if it was piston slap it was. All I care is its fixed now. And I have nice red painted valve covers LOL.