Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: What springs are you running and is your valve train noisy
Comp 918
47.62%
Comp 921
14.29%
PRC Platinums
9.52%
PRC Golds
0
0%
Patriot Golds
19.05%
Crane 832
9.52%
Comp 978/987
0
0%
Revs
0
0%
Voters: 21. You may not vote on this poll

People with noisy valvetrains

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Old Dec 10, 2005 | 10:42 AM
  #1  
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Default People with noisy valvetrains

I am running the PRC Platinums with a G5X4 and my vt is just as quiet as the stock setup. Stock rockers with 7.4" PR

Last edited by HumpinSS; Dec 10, 2005 at 11:14 AM.
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Old Dec 10, 2005 | 11:12 AM
  #2  
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What size p-rods are you using? and what kind of rockers?
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Old Dec 10, 2005 | 11:15 AM
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is your setup noisy or not?
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Old Dec 10, 2005 | 01:06 PM
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Was and I was able to reduce it with 7.425 p-rods.
PRC platinum, XE-R cam, (was 7.40), GM .054 graphite, heads milled .010
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Old Dec 10, 2005 | 01:27 PM
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patriot golds and it sounds like a bad *** sewing machine lol
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Old Dec 10, 2005 | 01:50 PM
  #6  
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my top end is currently under construction. the previous set up used oem lifter's, jesel SS's, & isky springs on a 238/242 xer lobe.... you could barely hear it over open headers

new set up should purr like a kitten
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Old Dec 10, 2005 | 02:56 PM
  #7  
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918's - LPE GT2-3 - 7.425 PR's, very slight sewing machine noise between 2-3,000 RPM.
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Old Dec 10, 2005 | 03:07 PM
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Originally Posted by Dan_the_C5_Man
918's - LPE GT2-3 - 7.425 PR's, very slight sewing machine noise between 2-3,000 RPM.
Nothing to do with this thread, sorry, but have you had your car dyno'd? and does your engine feel lazy up to around 4000 RPM?
Just curious and want to compare to a similar combo.
Thanks
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Old Dec 10, 2005 | 06:40 PM
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Crane 832 duals, Comp hard rods 7.350" Comp 232-236/.595-.605 cam on a 114+4 lobe and yes its noisy, but music to my ears!
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Old Dec 10, 2005 | 07:28 PM
  #10  
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918's with 244/248, 7.350's Comp PR's. Sew away!
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Old Dec 10, 2005 | 10:45 PM
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Cant vote on this, on the same cam, and pushrods, I had run 918's and PP Golds. Still loud vt. Hopefully my engine swap will be done tomorrow and will find out whats up with the springs ET Performance uses on their new castings. I'd love a quiet vt though. Might experiment with prod length if I have the same noise.
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Old Dec 11, 2005 | 12:45 AM
  #12  
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I thought that my Comp R lifters were the source of noise in my motor. I have enlarged the holes in the head for pushrod clearance. Turns out that the pushrods were hitting down inside the head.
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