Results 1 to 18 of 18

Confused?

This is a discussion on Confused? within the Firebird / WS6 forums, part of the Vehicle Specific category; I have been reading a LOT of LS series questions. What is the difference between the LS series? It's all ...

  1. #1
    Junior Member T-Rexxx's Avatar
    Join Date
    Jun 2009
    Location
    Virginia
    Age
    45
    Posts
    48

    sand
    2001 Trans Am WS6

    Confused?

    I have been reading a LOT of LS series questions. What is the difference between the LS series? It's all the same block just different bore, stroke and heads right? LS1, LS2, LS6, LS7 and LSX? I have A 2001 WS6 with an LS6 intake on a LS1 motor, so what is the difference between that and a regular LS1 or LS6? Break it down for idiots like me please. I just can't figure out why I would have an LS6 intake on my LS1 and not be better than an LS2. If I had to replace my LS1 with an LS6 wouldn't that be better than an LS2?

  2. #2
    Life in the Fast lane sunsetorangess's Avatar
    Join Date
    Aug 2005
    Location
    Bragg NC
    Posts
    2,835

    Met. Sunset Orange
    01 SS

    Im sure everyone will have feedback but the answer to that question could take days to type....
    Heres a few Basics, LSX is the name for the Generation 3 Chevy small block. It covers all that you listed, ls1,ls2 ls6 etc etc.
    There are alot of differnces in both the block design and the application. For instance the Lq4 Was used in trucks and the ls1 was used in the F-body platform.
    The ls6 intake flows better than the ls1 intake.
    J
    2001 SS, Its not the car its the Driver that matters....

  3. #3
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    Location
    college station, tx
    Posts
    2,564

    sold: 1999 firebird
    1998 Trans Am

    Quote Originally Posted by T-Rexxx View Post
    I have been reading a LOT of LS series questions. What is the difference between the LS series? It's all the same block just different bore, stroke and heads right? LS1, LS2, LS6, LS7 and LSX? I have A 2001 WS6 with an LS6 intake on a LS1 motor, so what is the difference between that and a regular LS1 or LS6? Break it down for idiots like me please. I just can't figure out why I would have an LS6 intake on my LS1 and not be better than an LS2. If I had to replace my LS1 with an LS6 wouldn't that be better than an LS2?
    you could think of LS6s & LS2s as being very similer power wise, ls2 is slightly bigger but the LS6 has more agressive cam specs etc.

    LS1s and 6s are the same size, again LS6 is just more agressive and freeflowing,

    Wikipedia was made for these kinds of questions, if you want exact answers go there for a breakdown

  4. #4
    Firebird Encyclopedia 9T8W66's Avatar
    Join Date
    Oct 2006
    Location
    St. Clair Shores. Michigan
    Age
    49
    Posts
    1,605

    Navy Blue Metallic
    `98 Formula M6 HdTp

    LS1 & LS6 = 5.7 litre (LS6 is basically an upgraded LS1)
    LS2 LQ4 LQ9 L76 = 6.0 litre (LS2 replaced LS1 in `05 an the Lq's are truck engines, the L76 is from the G8)
    LS3 L92 LS9 = 6.2 litre (LS3 replaced the LS2, L92 is basically the same engine but for Truck/SUV's LS9 is ZR1 engine and has supercharger)
    LS4 = 5.3 litre (Front Wheel Drive Monte Carlo SS and GXP Grand Prix)
    LS7 = 7.0 litre (ZO6 only)
    Craig
    Semi Retired Street Racer
    2012 Lava Red Mustang GT Coupe Brembo/3.73's
    Build Date 3/17/11, Last Lava Red GT

    Gone but not forgoten
    NBM `98 Formula M6 HdTp
    1 of 1 Build Date 3/12/98

  5. #5
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    Location
    college station, tx
    Posts
    2,564

    sold: 1999 firebird
    1998 Trans Am

    Quote Originally Posted by 9T8W66 View Post
    LS1 & LS6 = 5.7 litre (LS6 is basically an upgraded LS1)
    LS2 LQ4 LQ9 L76 = 6.0 litre (LS2 replaced LS1 in `05 an the Lq's are truck engines, the L76 is from the G8)
    LS3 L92 LS9 = 6.2 litre (LS3 replaced the LS2, L92 is basically the same engine but for Truck/SUV's LS9 is ZR1 engine and has supercharger)
    LS4 = 5.3 litre (Front Wheel Drive Monte Carlo SS and GXP Grand Prix)
    LS7 = 7.0 litre (ZO6 only)
    adding to this, LS motors are aluminum

    L-anything else is iron

  6. #6
    Firebird Encyclopedia 9T8W66's Avatar
    Join Date
    Oct 2006
    Location
    St. Clair Shores. Michigan
    Age
    49
    Posts
    1,605

    Navy Blue Metallic
    `98 Formula M6 HdTp

    Quote Originally Posted by justinmc978 View Post
    adding to this, LS motors are aluminum

    L-anything else is iron
    Not totally true L92's and L76's are all aluminum.

  7. #7
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    Location
    college station, tx
    Posts
    2,564

    sold: 1999 firebird
    1998 Trans Am

    Quote Originally Posted by 9T8W66 View Post
    Not totally true L92's and L76's are all aluminum.
    thanks for the correction i didnt know that

  8. #8
    Firebird Encyclopedia 9T8W66's Avatar
    Join Date
    Oct 2006
    Location
    St. Clair Shores. Michigan
    Age
    49
    Posts
    1,605

    Navy Blue Metallic
    `98 Formula M6 HdTp

    Quote Originally Posted by justinmc978 View Post
    thanks for the correction i didnt know that
    Most of the engines (including trucks) are all aluminum now.

  9. #9
    its short but its skinny. jiveass's Avatar
    Join Date
    Oct 2009
    Location
    The Woodlands/spring/houston
    Posts
    2,142

    pewter
    99 trans am

    Quote Originally Posted by T-Rexxx View Post
    I have been reading a LOT of LS series questions. What is the difference between the LS series? It's all the same block just different bore, stroke and heads right? LS1, LS2, LS6, LS7 and LSX? I have A 2001 WS6 with an LS6 intake on a LS1 motor, so what is the difference between that and a regular LS1 or LS6? Break it down for idiots like me please. I just can't figure out why I would have an LS6 intake on my LS1 and not be better than an LS2. If I had to replace my LS1 with an LS6 wouldn't that be better than an LS2?
    i believe some of the 01-02's came with ls6 intake. Probably due to shortage of ls1 intakes. someone correct me if im wrong.

  10. #10
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    Location
    college station, tx
    Posts
    2,564

    sold: 1999 firebird
    1998 Trans Am

    Quote Originally Posted by needls1again View Post
    i believe some of the 01-02's came with ls6 intake. Probably due to shortage of ls1 intakes. someone correct me if im wrong.
    well they were just getting rid of egr, it was getting old in the 00's, they finnaly realized it was unnecessary

  11. #11
    Junior Member Oddwraith's Avatar
    Join Date
    Mar 2010
    Location
    North Bay, Ontario Canada
    Posts
    16
    2001 T/A Firehawk

    ALL 01 and 02 cars had the ls6 intake to get rid of egr as stated above. A small amount also received the ls6 block (no performance gain in that application however). I think there is also an L99 engine too, available on the new SS (6 speed auto uses this instead of the ls3). It has 400hp as opposed to the claimed 425 of the ls3.

  12. #12
    Firebird Encyclopedia 9T8W66's Avatar
    Join Date
    Oct 2006
    Location
    St. Clair Shores. Michigan
    Age
    49
    Posts
    1,605

    Navy Blue Metallic
    `98 Formula M6 HdTp

    The LS6 intake replaced the old LS1 intake in `01 on all passenger cars.
    LS1 intakes were no longer produced and also it was not totally EGR related as the `97-`00 Corvettes used the LS1 intake with no EGR provisions.

  13. #13
    Junior Member Oddwraith's Avatar
    Join Date
    Mar 2010
    Location
    North Bay, Ontario Canada
    Posts
    16
    2001 T/A Firehawk

    Did not know that, thanks.

  14. #14
    Firebird Encyclopedia 9T8W66's Avatar
    Join Date
    Oct 2006
    Location
    St. Clair Shores. Michigan
    Age
    49
    Posts
    1,605

    Navy Blue Metallic
    `98 Formula M6 HdTp

    Quote Originally Posted by Oddwraith View Post
    Did not know that, thanks.
    No problem
    The common misconception is that there were two intakes being built at the same time. When in fact the LS6 (which gets it's name because it debuted on the `01 LS6 engine) superseded the LS1 on all passenger car engines that year. The lack of EGR on the later cars is attributed to the different (tighter LSA) 6.0 Truck camshaft used.

  15. #15
    autoconnectionllc.com 02transamce's Avatar
    Join Date
    Nov 2008
    Location
    Montgomery,Ala
    Posts
    2,436

    2007 Corvette
    Ebony

    ls1 and ls6 are gen III while ls2 and later ls engines are gen IV,correct?

  16. #16
    Firebird Encyclopedia 9T8W66's Avatar
    Join Date
    Oct 2006
    Location
    St. Clair Shores. Michigan
    Age
    49
    Posts
    1,605

    Navy Blue Metallic
    `98 Formula M6 HdTp

    Quote Originally Posted by 02transamce View Post
    ls1 and ls6 are gen III while ls2 and later ls engines are gen IV,correct?
    Correct the basic cuttoff point is `04 as anythng built in`05 and up has a Gen IV.

  17. #17
    expensive tires az gt eater's Avatar
    Join Date
    Mar 2006
    Location
    phoenix
    Posts
    1,951

    white
    04 2500 4x4 crew cab

    how could you find out if you had a ls6 block? and couldnt a guy use that to his advantage?
    Quote Originally Posted by SiggyZ View Post
    Try roasting your crow. It'll be easier to get down.
    Quote Originally Posted by GTP231 View Post
    I like grilling mine with a nice brown sugar based rub

  18. #18
    Senior Member Orcus79's Avatar
    Join Date
    Feb 2006
    Location
    Canada
    Age
    38
    Posts
    1,346

    black
    2002 WS6

    the only way I know would be to run the casting numbers on the block or drop the oil pan. There are no performance gains between the LS1 or LS6 blocks beyond a slightly better casting and breather windows cast into the cylinder skirts to allow for better crank case air flow.

    Number for number, the rating for ls1/6 blocks in F-body cars are the same. The factory numbers you see are from the LS6 heads that were used along with some cam tweeking done on the vettes. Beyond that nothing major changed between the two blocks.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. confused..
    By jakez28 in forum Request and Feedback
    Replies: 3
    Last Post: 04-03-2010, 12:56 AM
  2. confused
    By kamahlwolf in forum Firebird / WS6
    Replies: 13
    Last Post: 03-27-2010, 06:59 AM
  3. confused??
    By jmatt07 in forum Internal Engine
    Replies: 14
    Last Post: 01-12-2009, 12:05 AM
  4. Im so confused
    By JoshieDoom in forum Almost Anything Goes
    Replies: 6
    Last Post: 02-12-2008, 01:39 AM
  5. i am very confused
    By purplebat66 in forum General Help
    Replies: 6
    Last Post: 08-08-2007, 02:57 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •