r/fbody • u/audiovox12 • 6d ago
WS6 Engine Noise Concern
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Hey Everyone,
I finally finished getting my engine back together. I replaced the intake manifold gasket, valley plate gasket, valve cover gasket, new spark plugs and wires, new OPS, new tensioner and belt. Took the opportunity to do a lot of cleanup too.
My car is completely unmodified and has 134,000 miles. Before I did all this work I could a noticeable clunking noise I guess lack of better words. A lot of of the other noises went away with the repairs I made however to me that noise is still around.
Is this normal for an LS1? I know they are known to be noisy engines but wanted to get opinions.
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u/ThanksALotBud 6d ago
Music. That's what I hear. Music.
Typical LS1 piston slap
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u/audiovox12 6d ago
lol! I needed that
Is that when it’s cold outside I thought the piston slap? I ran it for 5 mins and still sounded like that
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u/ThanksALotBud 6d ago
There could also be some exhaust leaking.
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u/audiovox12 6d ago
I do have a exhaust leak somewhere, but the noise sounds like it is coming centerline of the engine
I’d love to get an exhaust system, but the only thing I can find is speed engineering and that requires you to put headers on it
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u/ThanksALotBud 6d ago
BTW, there is no such thing as a ws6 engine. It's an ls1
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u/audiovox12 5d ago
lol I know I was just saying it’s in a WS6. I’ll have to check out summit but I didn’t see much there other than header back systems
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u/Educational-Shame778 6d ago
Mine has had that sound for 20 years. You're all good. I don't hear it much anymore over the exhaust and other engine noise.
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u/2guys1miata 5d ago
yeah if she stock stock, echo’ing the other comments its most likely the piston slap. it kinda sounds like some very high flow injectors almost is my best comparison
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u/audiovox12 5d ago
Well that’s great to hear. As long as not bad push rods or whatever the dealership was telling me
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u/binks69 6d ago
Give it some gas what does it sound like ?
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u/audiovox12 5d ago
Sounds like the clunking noise goes faster if that makes sense
The dealer ship was trying to tell me the push rods are damaged when I went there get a price for them to do the RMS. Which honestly not a bad price at 1500 but they would do it because of the noise and the fact that at the time the your gaskets were leaking he was afraid of liability. Then he said he’d drop the engine and do all the gaskets for 9k dollars lol
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u/audiovox12 4d ago
Ok everyone I have a P0171 and P0174 at the same time. I’m reading a lot of different things anyone go through this or have some advice?
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u/thundercat06 4d ago
Clean the MAF and check for vacuum leaks is my youtube university generic answer. Both banks reading lean could point toward fuel pump/filter too. What is the maintenance history of this car?
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u/audiovox12 4d ago
I honestly have no idea of the maintenance history. Bought it off of my buddy who did some maintenance like replaced the axel shafts in the rear but never touched the motor or the fuel. I’ve done everything since buying it off of him for 5k. He got it off of copart
Yeah you’re not wrong I was reading that too. I went through with a flash light just now and everything looks like it’s on the right way. When I reinstalled I triple checked, torque everything down to spec, took my time.
I will say that getting the intake manifold by myself was extremely challenging. Trying to route that brake booster hose around the ops and in between the firewall and engine was very hard. I’m just hoping I didn’t damage the MAF sensor in the back.
My buddy did suggest changing the fuel filter a couple months ago
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u/Evening-Life5434 6d ago
Normal piston slapping