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6.0 L truck motor into 1999 ws6

This is a discussion on 6.0 L truck motor into 1999 ws6 within the Internal Engine forums, part of the LSx Technical Help Section category; Originally Posted by mrr23 pics of how to do that is on the bottom of my webpage here http://www.stealthram.com/408.htm Some ...

  1. #21
    Senior Member Bottesini's Avatar
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    Quote Originally Posted by mrr23 View Post
    pics of how to do that is on the bottom of my webpage here

    http://www.stealthram.com/408.htm

    Some great stuff there, better then some of the books I have seen lately. I think eventually I am going to have to pick your brain as more details come up

  2. #22
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by mrr23 View Post
    heads gaskets are not the same from a LS1 to the LQ9. the bore on the 6.0L is 4.000 the LS1 is 3.898. overall the head gasket is designed the same with the exception of the bore diameter.
    I wasn't very clear.
    The gaskets themselves are basicly the same, but with different bores.

  3. #23
    Veteran Hi-Po's Avatar
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    Quote Originally Posted by SS/CETA View Post
    Nothing like a Trans Am revving his engine up and it sounding like a truck. I'm not down with it. There's a kid with a swap here in town and it sounds terrible coming from behind such a beautiful midnight blue metallic car.
    What are you talking about? The truck block/engine sounds like any other engine. Its an engine with 8 cylinders. Exhaust and a cam make the sound of ANY engine. You do understand that thgere are many many engines with the letter " L , that are direct drop in replacement for the fbody's right?

    I have the LQ4 engine. It screams and makes great power. 18 extra cubes, minor weight penalty, and also using the stock truck motor camshaft. It does not sound like a truck... what so ever. I dont know where you pulled that from???




    I say drop that 6.0 in the fbody, add a FAST 90/90 .. 92/92. A good set of heads, full exhaust and let it scream.

    Then later on, save up for a .030 over bore and a 4 inch stroke crank and make a 408 that will scream. You wont regret it.
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  4. #24
    Member Justin93's Avatar
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    How much more does the LQ4- 9 WEIGH compared to a stock LS1. I want to get one ready to slide in the maro once its not a dd anymore .
    Last edited by Justin93; 08-11-2008 at 02:29 PM.

  5. #25
    R/A T/A SS/CETA's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    It is basicly an iron LS2. It wouldn't sound like a truck...

    My car has an LQ9 block in it, but with forged internals. They are all LSx's. The sound depends on the exhaust.
    HMM......Maybe so. It annoys the shit outta me because it sounds like all the Z71's running around town, but then you turn around and it's Terry flying around in his WS.6. It throws me off.

  6. #26
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    Quote Originally Posted by Justin93 View Post
    How much more does the LQ4- 9 WEIGH compared to a stock LS1. I want to get one ready to slide in the maro once its not a dd anymore .
    I think it is 112 pounds or something. Some one correct me.
    Quote Originally Posted by SS/CETA View Post
    HMM......Maybe so. It annoys the shit outta me because it sounds like all the Z71's running around town, but then you turn around and it's Terry flying around in his WS.6. It throws me off.
    I still have NO IDEA where you are pulling that from. I gurantee if you heard my car you would never guess or say it sounded like a truck.

    But whatever, it must be a Southern thing.

  7. #27
    Slow'er'Ass Mr. Luos's Avatar
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    Everything I read was 80-85 pounds heavier.

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    Member Justin93's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    Everything I read was 80-85 pounds heavier.
    wow thats minimal. Looks like Ive got alot of reading to do on this!!!

  9. #29
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Justin93 View Post
    wow thats minimal
    It really isn't.

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    well Im pretty sure i shaved a good bit of weight off mine this weeked just by switching to headers from the stock heavy ass manifolds. Did you have to do any front suspension mods for the extra front weight?

    Edit to previous post ment to have a "not" in front of "that" lol. I just caught that
    Last edited by Justin93; 08-12-2008 at 03:21 PM.

  11. #31
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Justin93 View Post
    well Im pretty sure i shaved a good bit of weight off mine this weeked just by switching to headers from the stock heavy ass manifolds. Did you have to do any front suspension mods for the extra front weight?
    Nope.

    I removed (actually left off) the A/C to counteract the majority of the iron blocks weight.
    My car is still a pig though...3590 pounds without me.
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  12. #32
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    it may be a pig but running 11.97 at mile high altitudes is pretty impressive to me for a heavy ride.

  13. #33
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    Quote Originally Posted by Mr. Luos View Post
    It really isn't.
    please believe this, the iron block is a big weight penalty right from the get go.

    There is no getting around it. Period.

    Now, the 18 extra cubes can off set that with the right set up. If I had a FAST 90/90 92/92 I would be extra appreciative of having this heavy block up front.


    This winter I will be putting the battery in the back maybe?

  14. #34
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Justin93 View Post
    it may be a pig but running 11.97 at mile high altitudes is pretty impressive to me for a heavy ride.
    Thanks!!

    Pretty happy with it for what it is.
    Just a hair short of trapping 120MPH here....should be running 11.50.

    Maybe someday I will learn how to drive it.

  15. #35
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    Ok...i have been reading this section because I have a 6.0 out of an 03 chevy truck that we pulled because of a knocking piston. My question is, If i put ls1 heads and intake on it, its pretty much the same as an ls2? Being that I would fix the piston and maybe build it up a tad. I have an 73 trans am that I kind of want a good daily drivin motor in it. And once rebuilt i could throw it in there.

  16. #36
    I Like It Stroked 99Ls1fever's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    Intake wouldn't fit.

    But, I have the LQ9 block in my 1999. Direct replacement. One hole needs drilled and tapped for the alternator.
    Curtis do you know what stock LQ9 heads flow???

  17. #37
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by 99Ls1fever View Post
    Curtis do you know what stock LQ9 heads flow???
    I would imagine somewhere in the 275-285 range at 600"

  18. #38
    I Like It Stroked 99Ls1fever's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    I would imagine somewhere in the 275-285 range at 600"
    Have you ever found a flow chart on them or a alot of information n those heads casting # 317???
    Links or anything
    Thanks

  19. #39
    I Like It Stroked 99Ls1fever's Avatar
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    give me a link homie.... i have searched and am special

  20. #40
    Senior Member mrr23's Avatar
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    as far as flow specs, here you go
    http://smokemup.com/tech/ls1.php

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