02 4.8

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Feb 20, 2018 | 08:48 PM

Adrian Leal

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02 4.8

I have a 02 Silverado with a 4.8 with the xr275 566/568 112lsa with the 08 intake with 92mm TB what I recently done is put the tsp double springs on with tsp pushrods what I wanted to know if those springs are to hard for that cam
Please lmk asap
Thank you

Feb 21, 2018 | 07:04 AM

JoeNova

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Spring pressure doesn't really have any effect on a cam..

Feb 21, 2018 | 08:03 AM

epfatboy

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It will however put more stress on the lifter, of specific concern is the roller wheel/bearing. Just make sure to get the softest seat/compressed spring pressure for your config, typically this is driven by can lift.

Feb 21, 2018 | 08:12 AM

Che70velle

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What rpm are you looking to spin it to?

Feb 21, 2018 | 12:23 PM

Adrian Leal

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Oh ok cause the cam is from 1800-6800 and im pushing it to 6950rpm but whats weird to me before I swapped out the ls6 blue springs it ran 13.8@96.7
And after the springs it ran 14.034@95.2 so idk what's causing that

Feb 21, 2018 | 12:34 PM

tech@WS6store

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Where does the cam stop making power? Did you shim the springs?
Putting a dual spring kit on those lobes and that lift is more than overkill.

Feb 21, 2018 | 12:40 PM

Adrian Leal

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I left the original valve stem seals on it I didnt put the seals that come with the springs but it does fit tight on the originals and roughly when it hits 3rd its just making noise dont really feel it pulling