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Thread: Cam and converter suggestion for 2012 crew cab 5.3

  1. #21
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    Jan 2010
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    Ill b keeping these 243's for sure.

  2. #22
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    Sep 2008
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    Quote Originally Posted by we_fly_high View Post
    What heads come on a 5.3 in a 04 Avalanche? If you swap your heads let me know!
    Usually 706/862s. 243s have bigger chambers and will lower your CR which will negate any gains. Not worth it.
    ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06

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

  3. #23
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    Round Rock, Texas
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    I have an extra set of 706 heads sitting in my garage, if you're interested.
    cjriojas:if you're weather man is a 5 gallon bucket, YOUUUUUUUUUUU might be a redneck
    danger_ranger83: I see now why it cost so much to get a harness made... FML
    2boostedSilverado: I like Casey's rear end, I want to chat with him about it

  4. #24
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    Feb 2011
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    Pittsburgh, PA
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    Quote Originally Posted by kerrige View Post
    Usually 706/862s. 243s have bigger chambers and will lower your CR which will negate any gains. Not worth it.
    Thanks, still learning the ins and outs so this helps!

  5. #25
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    Quote Originally Posted by we_fly_high View Post
    Thanks, still learning the ins and outs so this helps!
    No worries thats why we are here to learn. If you swapped to 4.8 pistons or milled the 243s it would be a great idea, but not just a direct swap.
    ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06

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

  6. #26
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    Jan 2010
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    any thoughts on my set up
    2012 Ford F-150 Ecoboost Super Crew 4x4, stock and staying that way.
    2001 chevy green = LS1 stock, 3k stall, 373 posi, tuned by LSX Power in CS TX

  7. #27
    Join Date
    Sep 2011
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    1,235
    Why don't you put a lil love into those heads and port them!

  8. #28
    Join Date
    Jan 2010
    Location
    Cedar Park
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    I most likely will once i get them off for the cam swap since i gotta tear the top half off any ways. Ill practice on some junk 706's to get my craft down then work the 243's and the intake a lil...
    2012 Ford F-150 Ecoboost Super Crew 4x4, stock and staying that way.
    2001 chevy green = LS1 stock, 3k stall, 373 posi, tuned by LSX Power in CS TX

  9. #29
    Join Date
    Jan 2010
    Location
    Cedar Park
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    bump 4 input
    2012 Ford F-150 Ecoboost Super Crew 4x4, stock and staying that way.
    2001 chevy green = LS1 stock, 3k stall, 373 posi, tuned by LSX Power in CS TX

  10. #30
    Join Date
    Nov 2007
    Location
    S.A. Texas
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    220/224 590 112. 3400 stall, and you dont have to pull the heads to swap a cam on the LS platform.
    Name: Mark,
    God created turbo lag so nitrous trucks could have a chance.


    http://www.ls1truck.com/forums/my-ga...tml#post274877

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