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  1. #1
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    Jan 2011
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    Vancouver, WA
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    Cool LS6 Cam for 2500Hd?

    Hey guys, I have been having oil pressure issues and all that is left is the cam bearings being shot. A local shop told if me if I pull the heads and bring the motor in on a pallet they would do it for 200 labor + plus the cost of bearings. I use my truck to pull a trailer for work (4,000 at most loaded) and play in the mud every now an then. I plan on getting headers and a tune after work picks up here soon, but for now I'm just trying to get my truck back on the road. After all a contractor without a truck is like a bartender with out alcohol. I'm on my 3rd oil pump (the first one died, the second one a corner broke off it.) I am trying to keep the cost down for now, but since the cam is coming out anyway is an LS6 cam a good idea?
    It's going into a 03 2500HD LQ4 with a specter cold air and stock exhaust except a flow pro muffler.
    I cant get too crazy with it and it is my DD and work truck as much as I would love too.
    Oh and I have done EVERYTHING for the oil pressure, pumps, pressure sensors, cleaned the tube, and ran a mechanical gauge (10 at idle 25 max.)

    - - - Updated - - -

    I would be willing to go as far as this GM hot cam as long as it didn't require upgrading the rocker arms and what not and putting another $500-$700 dent in my pocket. As far as I understand it both will work with the stock rocker arms


    http://www.summitracing.com/parts/na...s/?prefilter=1
    Last edited by Marineredn; 03-10-2013 at 09:31 PM.
    2003 Silverado 2500HD
    Specter cold air
    Toyo AT's
    1972 Chevelle (project)

  2. #2

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    Any LSx series cam will work, that isn't specifically designed for AFM (and maybe VVT, I'm not entirely sure what the VVT cam specs are). You will need a little re-tuning work with any cam change though.

  3. #3
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    TRPLXL2's Avatar
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    I was going to go with the GM hot cam when I did my swap, but changed my mind when I saw that the specs weren't too far off from my stock F-body cam LS1. I am running a Lunati 224/560/112lsa off the shelf cam, with a 3000 stall in my daily driver and I love it.

    Dobey is correct with the tuning though, mine is considered a "mild" cam and it was not driveable untuned at all.

    I know you don't want to do supporting upgrades with the cam, BUT the stock valve springs and rockers are not a good idea. At minimum at least get a set of beehive springs, and the trunion upgrade for the stock rocker arms. I have seen guys rev the LS engines to a point, where the needle bearings actually spill out of the rocker arms and go into the engine.

    Good luck with your rebuild!!
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  4. #4
    Sr. Apprentice
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    Jan 2011
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    Default

    - - - Updated - - -

    Quote Originally Posted by TRPLXL2 View Post

    Dobey is correct with the tuning though, mine is considered a "mild" cam and it was not driveable untuned at all.

    the stock valve springs and rockers are not a good idea. At minimum at least get a set of beehive springs, and the trunion upgrade for the stock rocker arms.
    Thank you
    I guess I'll just have to get the tune done. I plan on getting LS6 springs but Ill look into better rockers too
    2003 Silverado 2500HD
    Specter cold air
    Toyo AT's
    1972 Chevelle (project)

  5. #5
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    TRPLXL2's Avatar
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    I went with Lunati Voodoo 1.7 roller rockers on mine, just because I didn't want to fool with the trunion upgrade plus my motor had over 140,000 miles on it when it was torn apart. I think I paid like $379.00 for the rockers, make sure that you get a pushrod length checker once you get everything switch, because the last thing you want is for the stock 7.400 pushrods to be too short.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

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