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Thread: time to upgrade the 6.0 one last time

  1. #11
    Join Date
    Nov 2007
    Location
    THE MEAN STREETS OF OKLAHOMA
    Posts
    11,284
    Its the 6.2 L head, casting number is 823, theyre square port and flow better, you have to change intakes, and sometimes ptv can be an issue.
    THEY CALL ME G.

    AZRAEL
    01 GMC REG CAB BUILDING
    06 SILVERADO SS 80E 3200 YANK LS3 TOP, DD
    2013 POLARIS RANGER CREW LE EPS

    The difference between winning and losing, is having a 2nd stage.
    Quote Originally Posted by A PATRIOT View Post
    "MOLON LABE"

  2. #12
    Join Date
    Nov 2011
    Location
    NH
    Posts
    109
    so i am thinking of getting a 799 head and swapping the comp springs i have onto them. i heard that ls7 lifters and pushrods are a cheap good upgrade. looking into a cam in the 230ish range and with good lift. and a nnbs intake swap with 90 mm throttle body. what do you guys got to add or say about this setup?? also what year and motor do i want a nnbs intake from?? looking a rock auto and need a year and truck and engine to know which one to get. Thanks

  3. #13
    Join Date
    Nov 2007
    Location
    THE MEAN STREETS OF OKLAHOMA
    Posts
    11,284
    2007 and up I believe.
    THEY CALL ME G.

    AZRAEL
    01 GMC REG CAB BUILDING
    06 SILVERADO SS 80E 3200 YANK LS3 TOP, DD
    2013 POLARIS RANGER CREW LE EPS

    The difference between winning and losing, is having a 2nd stage.
    Quote Originally Posted by A PATRIOT View Post
    "MOLON LABE"

  4. #14
    Join Date
    Sep 2008
    Location
    Arizona/Utah
    Posts
    3,955
    Ls7lifters yes pushrods no. Nnbs intake from a 5.3/4.8.... You can get 799/243 heads off the same truck as the intake.
    ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06

    waiting to go in... 3.90s, 214/220cam

  5. #15
    Join Date
    Sep 2007
    Location
    Ottawa, ON
    Posts
    937
    Yeah I think the LS7 pushrods are 3/8" not 5/16".
    2000 Chevy Silverado RCSB LS6 5 speed, LS6 short block, 317 heads, LS6 intake, Lunati 220/224 .575/.575 112LSA cam, Edelbrock Headers, CTS-V accessory drive, Nelson Performance Custom Tune.

  6. #16
    Join Date
    Nov 2011
    Location
    NH
    Posts
    109
    ok good to fnd out now!! lol and when swapping to a nnbs intake do all the fuel rails and vacum lines i have now swap over? or is there more to this swp then just buying a intake??

  7. #17
    Join Date
    Nov 2011
    Location
    NH
    Posts
    109
    also when doing all of this i need new gasket and head bolts, what are good brands that you guys use?? and what pushrods are a good upgrade for 220 to 230ish duration and 575 to 600 lift cam? and will the comp springs i got for the smaller cam i got now work on a bigger one??? thanks guys

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