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LQ4/LQ9 engines...

This is a discussion on LQ4/LQ9 engines... within the Internal Engine forums, part of the LSx Technical Help Section category; is there any reason why you dont want to mod your ls1?? i would understand if you wanted a 402/408 ...

  1. #21
    Veteran Blackbird WS6's Avatar
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    is there any reason why you dont want to mod your ls1??

    i would understand if you wanted a 402/408 or are going boost down the line and you wanted the iron block BUT i wouldnt want the added weight of the iron block just to do a cam and some head porting.... just something to think about

  2. #22
    Senior Member 98maro's Avatar
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    The reason why I can't mod my ls1 is because here in Cali. Emissions sux.
    I want my ls1 completely stock in Case I need to swap it for smog inspection or something
    I don't think I'm goin for stroker kit anymore. Unless I get a cheap kit. Which I don't think that could happen.
    I was thinking on getting an ls1 or ls6 and mod it.
    But those blocks are more expensive in my are than the 6.0.
    Plus I heard people saying that ls1 blocks can crack after high mileage.

    How heavier the lq9 are? I mean. Weight difference

    Any good advice welcome pls

    What block should be good for my goal?
    I'm trying to go over 400-450 hp.

  3. #23
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by 98maro View Post
    The reason why I can't mod my ls1 is because here in Cali. Emissions sux.
    I want my ls1 completely stock in Case I need to swap it for smog inspection or something
    I don't think I'm goin for stroker kit anymore. Unless I get a cheap kit. Which I don't think that could happen.
    I was thinking on getting an ls1 or ls6 and mod it.
    But those blocks are more expensive in my are than the 6.0.
    Plus I heard people saying that ls1 blocks can crack after high mileage.

    How heavier the lq9 are? I mean. Weight difference

    Any good advice welcome pls

    What block should be good for my goal?
    I'm trying to go over 400-450 hp.
    you can get 450hp out of a ls1 without a problem

    there about 100lbs heavier (i think) cant remember off hand

  4. #24
    Senior Member 98maro's Avatar
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    Damn it. That's a huge difference.

    How about the ls2?

    I'll keep looking around. And see what I can find.

  5. #25
    cutting and welding mark21742's Avatar
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    The iron block weighs 87 lbs more, but you can easily overcome that weight by going with a slightly larger can since the larger cubes will tame down a larger cam. Plus with larger cubes your torque comes in earlier than a smaller engine, so say you can have a win win here.

    Plus you might want to think about buying another computer for your car, so you can lol(smog swap ) your engine and computer the weekend before you get it tested and you won't have to get it returned every time.

  6. #26
    Senior Member 98maro's Avatar
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    Quote Originally Posted by mark21742 View Post
    The iron block weighs 87 lbs more, but you can easily overcome that weight by going with a slightly larger can since the larger cubes will tame down a larger cam. Plus with larger cubes your torque comes in earlier than a smaller engine, so say you can have a win win here.

    Plus you might want to think about buying another computer for your car, so you can lol(smog swap ) your engine and computer the weekend before you get it tested and you won't have to get it returned every time.
    I kinda want more the 6.0 sounds better than 5.7 lol
    87 pounds is lot of weight. But I'm sure is a better motor.
    But I'm doin the weight redution anyway so I should be even.

    I was thinking on a second PCM.
    But I was told the PCM holds the mileage of the odometer right?
    That could be a problem.lol

  7. #27
    Veteran Blackbird WS6's Avatar
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    ill take the lighter car over the "bigger cam"

    theres not that much of a power diff to make up the weight..... just my take

  8. #28
    Senior Member 98maro's Avatar
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    Quote Originally Posted by Blackbird-WS6 View Post
    ill take the lighter car over the "bigger cam"

    theres not that much of a power diff to make up the weight..... just my take
    This is when I get confused.
    You got a good point too.

    6.0 is heavier but more cubic inches motor and it's a better motor I believe.

    Ls1/6 are lighter engines,
    But I don't knw if it could mane the same hp as the 6.0s.
    I'm confused

  9. #29
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by 98maro View Post
    This is when I get confused.
    You got a good point too.

    6.0 is heavier but more cubic inches motor and it's a better motor I believe.

    Ls1/6 are lighter engines,
    But I don't knw if it could mane the same hp as the 6.0s.
    I'm confused
    5.7 - 6.0

    oh yea HUGH diff lol


    being better shouldnt matter to you bc you are not pushing the limits of either engine, there are people using LS1 blocks making 700rwhp on boost

  10. #30
    Senior Member 98maro's Avatar
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    Quote Originally Posted by Blackbird-WS6 View Post
    5.7 - 6.0

    oh yea HUGH diff lol


    being better shouldnt matter to you bc you are not pushing the limits of either engine, there are people using LS1 blocks making 700rwhp on boost
    Lol yeah huge huh lol
    I don't knw I'm confused.

    If I buy a broken block. Is that good or bad idea?
    Meanig broken piston, bearing or stuff like that

  11. #31
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by 98maro View Post
    Lol yeah huge huh lol
    I don't knw I'm confused.

    If I buy a broken block. Is that good or bad idea?
    Meanig broken piston, bearing or stuff like that
    ummm yea, i wouldnt do that lol the block could be fucked up and or need alot of machine work

  12. #32
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    Just get HPtuners, then save your stock profile, and create a new one for the 6.0... swap tunes with motors.... or just cam and spray the ls1 and save alot of time and effort.

  13. #33
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by FORD RECOVERY EXPERT View Post
    Just get HPtuners, then save your stock profile, and create a new one for the 6.0... swap tunes with motors.... or just cam and spray the ls1 and save alot of time and effort.

  14. #34
    Senior Member 98maro's Avatar
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    now im debating on ls1 or 6.0..whatever find first thats what ill get, and for a good price too

    juice is on my list for sure... but on my stock motor dont have trust for nitrous lol....

    my plan...
    ls6 intake
    ls2 chain
    ported heads (243s i think.not sure yet)
    LTs
    custom y pipe, or true duals, with highflow cats..
    non-california smog legal cam...LOL...
    ls6 ported oil pump.

    hopefully i can reach more than 400 hp..
    im gonna start buying pieces already...

  15. #35
    Senior Member 98maro's Avatar
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    Quote Originally Posted by Blackbird-WS6 View Post
    ummm yea, i wouldnt do that lol the block could be fucked up and or need alot of machine work
    lol yeah i rather getting it running..
    i ask cuz a friend of mine told me he can find one for cheap
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    next to come,4.10s,ls7 clutch, ms3 or 228r cam, ported 243s, ls6 intake, ls6 oil pump. ls2 timing chain, longtube headers no cats, with a tune..
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  16. #36
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by 98maro View Post
    now im debating on ls1 or 6.0..whatever find first thats what ill get, and for a good price too

    juice is on my list for sure... but on my stock motor dont have trust for nitrous lol....

    my plan...
    ls6 intake
    ls2 chain
    ported heads (243s i think.not sure yet)
    LTs
    custom y pipe, or true duals, with highflow cats..
    non-california smog legal cam...LOL...
    ls6 ported oil pump.

    hopefully i can reach more than 400 hp..
    im gonna start buying pieces already...
    the stock 6.0 can only take about a 150 shot safely.... more can be had but its not worth the chance

    both can make that power without question, just the LQ block will be 100lbs more lol for what your wanting to do i dont see no reason in getting a 6.0.... just my .02

    good luck

  17. #37
    Senior Member 98maro's Avatar
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    Quote Originally Posted by Blackbird-WS6 View Post
    the stock 6.0 can only take about a 150 shot safely.... more can be had but its not worth the chance

    both can make that power without question, just the LQ block will be 100lbs more lol for what your wanting to do i dont see no reason in getting a 6.0.... just my .02

    good luck

    thanks bro.. i pareciate the help..
    i think ill just go for a stock ls1 and do the samething..
    80-100 pounds make the difference on a 1/4 mile.. if both engines can take me to the same rout i dont see the point on getting a 6.0...
    unlees i make up my mind on going for turbo or something..


    75 shot is safe on ls1 right?

  18. #38
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by 98maro View Post
    thanks bro.. i pareciate the help..
    i think ill just go for a stock ls1 and do the samething..
    80-100 pounds make the difference on a 1/4 mile.. if both engines can take me to the same rout i dont see the point on getting a 6.0...
    unlees i make up my mind on going for turbo or something..


    75 shot is safe on ls1 right?
    yessir....

    how many miles are on your engine??

  19. #39
    Senior Member 98maro's Avatar
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    Quote Originally Posted by Blackbird-WS6 View Post
    yessir....

    how many miles are on your engine??
    it has 127xxx still pulls hard but i have to put a bottle of oil every 1000 miles...

    that was with 10w30 now i use 10w40 and i put one almost every 2000 miles..

    proably valve seals are bad??

  20. #40
    Veteran Blackbird WS6's Avatar
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    Quote Originally Posted by 98maro View Post
    it has 127xxx still pulls hard but i have to put a bottle of oil every 1000 miles...

    that was with 10w30 now i use 10w40 and i put one almost every 2000 miles..

    proably valve seals are bad??
    you have a catch can setup on your car??

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