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Valve springs Ls1/Ls9

Old Jun 3, 2015 | 05:33 PM
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Default Valve springs Ls1/Ls9

I have the chance to get some new Ls9 valve springs for my Ls1 I'm swapping a Ls7 cam in. My question is will they fit? Are the installed heights the same? And will the Ls1 retainers work? Thanks for any help!
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Old Jun 3, 2015 | 05:41 PM
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What is the castingnumber on the heads?
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Old Jun 3, 2015 | 06:00 PM
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My heads are 853's
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Old Jun 3, 2015 | 06:00 PM
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I also have 241's if it makes any difference?
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Old Jun 3, 2015 | 06:05 PM
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Originally Posted by 2000whitevert
My heads are 853's
I would measure the spring in.dia, the difference is the straight spring and not the beehive style if i remember right.
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Old Jun 3, 2015 | 06:10 PM
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Okay. I don't have them yet. Wanted to try and get a definite answer before I bought them. I'll see if I can get some info. Thanks for your help! Anybody know for sure?
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Old Jun 3, 2015 | 06:13 PM
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Okey if you going under 7000rpm and under 0.620 lift the comp beehive does the job.I use it in every heads i deliver.
Originally Posted by 2000whitevert
Okay. I don't have them yet. Wanted to try and get a definite answer before I bought them. I'll see if I can get some info. Thanks for your help! Anybody know for sure?
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