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Thread: question about 02 and up ls6 cam

  1. #1
    Join Date
    Aug 2005
    Location
    houston TX
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    73
    i was wondering if i could install a 02 and up ls6 cam in my 03 1500hd on a stock tune and stock 4l80e and converter i am probably geting hp tuners in a 3 or 4 month
    03 1500HD 4x4 6.0 on 33"
    K&N intake, Pacesetter LT, 3" true dule orp, Magnaflow, Comp cam 237 242 .603 .609 112, Patriot Gold springs and Ti retainers, stock ported heads, ASP Underdrive pulley, 42# injectors, 160 tstat., 05 E-Fans, Nelson Fan Harnas, tb bybass, MSD wires, NGK tr55, Ported tb, Transgo HD2, yank 3200 conveter, HP tuners, Walbro 255, 4.56s

  2. #2
    Join Date
    Jan 2005
    Location
    Conway, AR
    Posts
    1,353
    Are you going to get the Nelson tune to go with it or try and tune yourself? It doenst need much tuning, but it will need some to get it running tops! I have that cam in my ex cab Z71 and love it. I have hptuners and Allen is working with my logs to get it tweaked to perfection! You will need a higher stall converter, especially in that HD or you will be hurting a bit on the low end, but the top end will improve nicely. Also, get the stock Z06 springs or some Comp 918 springs to go with it.

    Chris
    2009 Silverado, HPTuners, all stock.

  3. #3
    Join Date
    Aug 2005
    Location
    houston TX
    Posts
    73
    i go to UTI and i have a teacher iam good friends witha teacher thats really good at tuning and we have a free dyno if i buy the program he will tune it for free. but i can still do it with out a stall i will just loose on the low end it wont hurt any thing though and i already have a set of comp 918s i am going to use
    03 1500HD 4x4 6.0 on 33"
    K&N intake, Pacesetter LT, 3" true dule orp, Magnaflow, Comp cam 237 242 .603 .609 112, Patriot Gold springs and Ti retainers, stock ported heads, ASP Underdrive pulley, 42# injectors, 160 tstat., 05 E-Fans, Nelson Fan Harnas, tb bybass, MSD wires, NGK tr55, Ported tb, Transgo HD2, yank 3200 conveter, HP tuners, Walbro 255, 4.56s

  4. #4
    Join Date
    Aug 2005
    Location
    houston TX
    Posts
    73
    i was reading on sdpc that the ls6 cam has smaller base circle than an ls1 cam and it would require longer push rods if this is true do in need longer push rods or can i use the stock ones or what size would i need
    03 1500HD 4x4 6.0 on 33"
    K&N intake, Pacesetter LT, 3" true dule orp, Magnaflow, Comp cam 237 242 .603 .609 112, Patriot Gold springs and Ti retainers, stock ported heads, ASP Underdrive pulley, 42# injectors, 160 tstat., 05 E-Fans, Nelson Fan Harnas, tb bybass, MSD wires, NGK tr55, Ported tb, Transgo HD2, yank 3200 conveter, HP tuners, Walbro 255, 4.56s

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    I didn't know they were smaller. I know most aftermarket cams are ground on a .050" smaller circle requiring .025" longer rods. I'd call Comp Cams and ask the techs there. They will steer you in the right direction.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Jan 2005
    Location
    Conway, AR
    Posts
    1,353
    No you will not need longer pushrods, the same pushrods are used for the Z06 cam as the 5.3L stock.

    Chris
    2009 Silverado, HPTuners, all stock.

  7. #7
    Join Date
    Aug 2005
    Location
    houston TX
    Posts
    73
    Originally posted by chrisj6@Aug 30 2005, 01:43 PM
    No you will not need longer pushrods, the same pushrods are used for the Z06 cam as the 5.3L stock.

    Chris
    is that the same for the 6.0 and did u go with the stock pushrods or did u get aftermarket ones
    03 1500HD 4x4 6.0 on 33"
    K&N intake, Pacesetter LT, 3" true dule orp, Magnaflow, Comp cam 237 242 .603 .609 112, Patriot Gold springs and Ti retainers, stock ported heads, ASP Underdrive pulley, 42# injectors, 160 tstat., 05 E-Fans, Nelson Fan Harnas, tb bybass, MSD wires, NGK tr55, Ported tb, Transgo HD2, yank 3200 conveter, HP tuners, Walbro 255, 4.56s

  8. #8
    Join Date
    Sep 2004
    Posts
    665
    You will be better off with after market push rods. The stock ones have a tendency to bend. It's fairly cheap and easy while you are in there.
    No more trucks, but this is what I used to have. 2000 GMC Sierra, 6.0L-LQ4, Built 4L60, LS6 Cam, The Other Guys Headers, 3 inch exhaust and 7 chamber flowmaster, 43lb injectors, Nelson Tuning, Drop - 3/4 McGaughys Spindles, Bell Tech Shackles & Hangers. Best time 13.59 @ 106

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