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LS1 - Upgrade to LS6 Valve Spring Install Video

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LS1 - Upgrade to LS6 Valve Spring Install Video

 
Old 02-04-2019, 10:22 PM
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Toys4Life C5
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Default LS1 - Upgrade to LS6 Valve Spring Install Video

With the addition of the A&A supercharger, spinning the stock engine to 6500 RPM'S on stock valve springs is not a good idea.

After careful thought, I decided to upgraded to LS6 springs. While I was at it, I made a detailed video of the process in case you were wondering what all is involved.


Thanks,
Ken
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Old 02-05-2019, 08:23 AM
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Moved to C5 Tech.
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Old 02-05-2019, 04:45 PM
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Nice.......I already did mine, but I saw all your other videos so why not.....The tool I bought to compress the springs sucked but you had a nice one. The only thing I did different was I turned the engine to TDC on each cylinder as opposed to the air hose method. With my luck I would have a power outage...all good though....
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Old 02-27-2019, 10:15 AM
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I just did the drivers side, Just have to remove the fuel line and then the valve cover can come off. Took about 1/2 the time as the passenger side as with anything, you get the hang of it.. Clutch is next....
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Old 02-27-2019, 12:09 PM
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Originally Posted by Toys4Life C5 View Post
I just did the drivers side, Just have to remove the fuel line and then the valve cover can come off. Took about 1/2 the time as the passenger side as with anything, you get the hang of it.. Clutch is next....
nice....good luck
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Old 02-27-2019, 01:07 PM
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Originally Posted by Toys4Life C5 View Post
With the addition of the A&A supercharger, spinning the stock engine to 6500 RPM'S on stock valve springs is not a good idea.

After careful thought, I decided to upgraded to LS6 springs. While I was at it, I made a detailed video of the process in case you were wondering what all is involved.

https://www.youtube.com/watch?v=SnAdlsSYspM&t=1s

Thanks,
Ken
Why didn't you upgrade the push rods while you were in there?
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Old 02-27-2019, 02:25 PM
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Originally Posted by Smoken1 View Post
Why didn't you upgrade the push rods while you were in there?
Good question and I should have put it in the video but I forgot.

This is a 2003 LS1 with 85k miles and I have been revving it to 5900 for 5 years and recently to 6500 for about 4 months (when I added the supercharger).

I have read a lot about the stock push rods being weak and bending so I rolled each of them on a flat surface and all of mine were perfectly straight.

The upgrade to LS6 valve springs is not a huge increase in spring rate (over stock) and I believe the LS1 and LS6 pushrods are the same part # so I am hoping they will be fine. If not, I will replace them. Also, some have said it is good to have them bend if there is an incident vs a super strong pushrod taking something else out.

Last edited by Toys4Life C5; 02-27-2019 at 02:25 PM.
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Old 03-01-2019, 10:02 PM
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Originally Posted by Toys4Life C5 View Post
Good question and I should have put it in the video but I forgot.

This is a 2003 LS1 with 85k miles and I have been revving it to 5900 for 5 years and recently to 6500 for about 4 months (when I added the supercharger).

I have read a lot about the stock push rods being weak and bending so I rolled each of them on a flat surface and all of mine were perfectly straight.

The upgrade to LS6 valve springs is not a huge increase in spring rate (over stock) and I believe the LS1 and LS6 pushrods are the same part # so I am hoping they will be fine. If not, I will replace them. Also, some have said it is good to have them bend if there is an incident vs a super strong pushrod taking something else out.


That theory on the pushrods is wrong... You always want as close to ZERO Deflection as possible in your valvetrain..
IF you still have this project apart;.... Replace the factory pushrods with some aftermarket upgraded units !!!You don't have to go crazy with
stock like cam profile, but the stock ones are OK for bone stock applications.. You are beyond that with your SC
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Old 03-02-2019, 03:03 PM
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Originally Posted by foggy View Post
That theory on the pushrods is wrong... You always want as close to ZERO Deflection as possible in your valvetrain..
IF you still have this project apart;.... Replace the factory pushrods with some aftermarket upgraded units !!!You don't have to go crazy with
stock like cam profile, but the stock ones are OK for bone stock applications.. You are beyond that with your SC
First off, I appreciate your taking the time to provide your opinion with regards to my setup.

Since-
  • I have the stock cam and;
  • the LS6 shares the same pushrod as my LS1 and;
  • the LS6 comes with a more aggressive cam and higher RPM limit
I am not understanding what specifically it is about my supercharged setup that leads you to believe I need stronger pushrods. I needed the LS6 springs for the increase from 5800 to 6500RPM AND because the boost somewhat tries to hold the intake valve open (keeping it from closing) so you need a little more spring to close it. I am not saying you are wrong, I am simply asking for more specifics as to what aspect of my setup exceeds the stock pushrods limits.

Thank you in advance.
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Old 03-02-2019, 07:12 PM
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This is the scary part of watching YouTube videos, no way to know if someone really knows what they're telling you is right...
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Old 03-22-2019, 08:56 AM
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Originally Posted by grantv View Post
This is the scary part of watching YouTube videos, no way to know if someone really knows what they're telling you is right...
Agreed. If it is an engine component or something unfamiliar, I will typically consult a manual and watch a couple of the better videos I can find. If I find a discrepancy, I hone in on the discrepancy until I am satisfied.
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