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Odd noise and compression

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Old Sep 19, 2012 | 10:58 PM
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Default Odd noise and compression

So the engine is bone stock 5.3 with ls6 intake, 80lb injectors, t72 turbo, e-85. I have been driving it most the summer now it has a weird ticking/knocking sound. It sounds like its coming from the intake at least that's where it's the loudest. I did a compression check drivers side from front to back read 1-190,3-180,5-190,7-195. Passenger side reads 2-195,4-235,6-190,8-165. I changed the oil thinking it might be delutted by e85 or something now oil pressure is a bit higher but still makes the noise. If I rev it up it gets quieter but then comes back. Not sure if a lifter crapped out or just needs to pump back up? This all happend after I made a pass up the road and back. Just hoping its not a rod. Oil pressure is at 45 at idle then goes up to 85 cold.
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Old Sep 19, 2012 | 11:58 PM
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did the oil have any metal shavings?
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Old Sep 20, 2012 | 07:06 PM
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I haven't cut open the oil filter yet to see if there is anything In there. But of course I drained the oil in to a dirty pan so not sure if I can go off that. A buddy said that there might still be crud in the lifter if indeed that is the problem. So it's drive it a hope or tair it down before she blows.
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Old Sep 20, 2012 | 07:17 PM
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Have you pulled your sparkplugs and checked them?
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Old Sep 20, 2012 | 08:23 PM
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Yes. They looked fine. Not smashed or anything
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