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Thread: 5.3 block

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  1. #1
    Join Date
    Jan 2009
    Location
    san antonio, tx
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    190
    Quote Originally Posted by txarkitekt View Post
    An L33 is a Gen III motor. No Gen IV L33 motors were made. The LH6 is the Gen IV aluminum 5.3L motor...and the LC9 is the FF aluminum 5.3L Gen Iv motor.

    But like I said--he needs to go look at the motor and check for casting numbers.
    I know the L33 is a gen III engine. But some early Gen IV 5.3's had 799 heads. So it could be a Gen IV engine.
    2008 Black RCSB Sierra 4.8L
    14.78 @ 90.93 mph
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  2. #2
    Join Date
    Dec 2008
    Location
    Kentucky
    Posts
    166
    OK looked at it today...
    806 heads
    2005 Iron block
    Z06 Cam
    Stock 5.3 intake
    63lb Injectors
    Complete Painless Harness
    Stock ECM

    Still dont know if its worth $600

    Compleate motor not longblock
    2001 GMC Sierra 4.8
    lowerd 2in in rear
    custom cat-back
    and the ever so mighty K&N

    -"Faster, Faster until the thrill of speed overcomes the fear of death."

    -Load it like a Freight Car
    -Polish it like a Show car
    -Drive it like a NASCAR

  3. #3
    Join Date
    Dec 2003
    Location
    Newark, Tx.
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    1,303
    Quote Originally Posted by Mr.Cornelius View Post
    OK looked at it today...
    806 heads
    2005 Iron block
    Z06 Cam
    Stock 5.3 intake
    63lb Injectors
    Complete Painless Harness
    Stock ECM

    Still dont know if its worth $600

    Compleate motor not longblock
    If it has a painless engine harness, its worth the money easily. Why does it have 63lb injectors? Was if FI? Nothing special about 806 heads.
    There has to be more story behind this.
    '92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
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    New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.

  4. #4
    Join Date
    Dec 2008
    Location
    Kentucky
    Posts
    166
    Well he has a Nissan 240sx...planed on using the 5.3 with a turbo in the car...but 3 weeks ago bought a NEW LS2...and now he is gonna use that in that 240...this will be his 3ed 240-LS Swap...He had one with a 4.8 and an older one with a LS1 and this one...now gettin a boosted LS2


    Him being a good friend offerd to sell me the 5.3 he got when he started this swap for what he has in it... $600 Basically the injectors and the cam. The heads came off one of his LS1s? I guess...

    I think Im gonna either wait and get a 6.0 or use my tax money and buy a built LS2...The only downside of the LS2 is I dont have the fun of building it myself...
    2001 GMC Sierra 4.8
    lowerd 2in in rear
    custom cat-back
    and the ever so mighty K&N

    -"Faster, Faster until the thrill of speed overcomes the fear of death."

    -Load it like a Freight Car
    -Polish it like a Show car
    -Drive it like a NASCAR

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