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Thread: 5.3 guys please chime in

  1. #1
    Join Date
    Dec 2004
    Posts
    11

    Thumbs up

    Hey guys and gals, trying to find out if anyone has upgraded to an LS6 cam in there 5.3? I have one and was told all I need is new shorter pushrods? Sound right? Thanks for looking and any part numbers would be greatly appreciated.

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Use the stock length rods, go to hardened for security. 7.400"
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Aug 2005
    Location
    Houston,Texas
    Posts
    290
    I currently run that cam and the only thing I changed was the valvesprings.
    99 ECSB 5.3 LS6 CAM AND SOME BOLT-ONS BEST TIME 13.6@97MPH

    http://i104.photobucket.com/albums/m...wTRUCKS008.jpg

  4. #4
    Join Date
    Dec 2004
    Posts
    11
    you guys think its a good swap? I got the cam for free<<<favorite word, had 8,200 miles on the car

  5. #5
    Join Date
    Jul 2005
    Location
    modesto, ca
    Posts
    173
    Can&#39;t beat that, I&#39;d do it for free
    http://i10.photobucket.com/albums/a1...dited-copy.jpg
    2007 Sierra crew 5.3 4wd, stock for now
    2004 Sierra scsb 5.3 - sold
    02 Z28 SLP cold air pack, Corsa exh, Center Force dual friction + 23 lb flywheel
    66 Chevy C20 (collecting dust)

  6. #6
    Join Date
    Dec 2003
    Location
    Newark, Tx.
    Posts
    1,303
    for &#39;02 and up LS6 cams, you need longer push rods as the cam is ground on a .050 smaller base circle.
    click here
    '92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
    http://videos.streetfire.net/video/d...d700c6401f.htm
    New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.

  7. #7
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462

    Cool

    Yup, due to LS6 valve stem height.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  8. #8
    Join Date
    Dec 2004
    Posts
    11
    I think I am going to hold off on cam swap. Im getting too much conflicting info,,,lol. I am just going to focus on getting the swap itself done then decide from there what to upgrade. Thanks for the help.

  9. #9
    Join Date
    Jan 2007
    Posts
    210
    i wouldnt do it, not worth the money for labor...unless ur installing it urself than the labor is free....i have a friend who ran a 14.2 fully bolt on and then installed the LS6cam and stayed exactly the same, no power gain.

    12.82@103.82mph w/1.78 60ft
    TUNED BY DAN

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