Page 1 of 3 123 LastLast
Results 1 to 20 of 43

7.0l

This is a discussion on 7.0l within the Internal Engine forums, part of the LSx Technical Help Section category; I was wondering if we can bore and stroke our engines to that of the Z06 427 cubic inch motor? ...

  1. #1
    Make real real sure Johns00Z28's Avatar
    Join Date
    May 2006
    Location
    Germantown, MD
    Age
    40
    Posts
    2,404

    Black
    2000 Z-28

    7.0l

    I was wondering if we can bore and stroke our engines to that of the Z06 427 cubic inch motor? I thought it was be pretty sweet to swap the LS1 in favor of the LS7 but I looked it up and they cost almost $14,000 without the dry sump oil lines, dry sump tank, engine beauty covers, engine processor (pcm), air filter/air box, accessories or accessory drive. Does anyone have any knowledge of a swap like this or would it be more practical to stroke the LS1?
    -John

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Gets very expensive to get an LS1 to a 427. Needs stroke and bore. In order to bore that far, you need to sleeve it. And even that isn't always real strong.


    Also...the LS7 makes roughly 450-460 RWHP. While that is a lot of power, it won't be nearly as fast as the Corvette with the same motor.

  3. #3
    Make real real sure Johns00Z28's Avatar
    Join Date
    May 2006
    Location
    Germantown, MD
    Age
    40
    Posts
    2,404

    Black
    2000 Z-28

    Well is there a way to get in the ballpark of that hp level without sleeving it and going w/ a power adder?

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    There are LS2 motors getting stroked to 402ci. 4" bore and 4" stroke.
    Average cam and heads will make 450 RWHP fairly easily.

    I have an LQ9 block stroked to a 402 in my car. 531 RWHP on motor. Large cam and average heads. 11:1 compression.

  5. #5
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    In the newest issue of GM HighTech Performance: The GM Performance Division shoehorned an LS7 into a 99 Camaro.

  6. #6
    Make real real sure Johns00Z28's Avatar
    Join Date
    May 2006
    Location
    Germantown, MD
    Age
    40
    Posts
    2,404

    Black
    2000 Z-28

    Quote Originally Posted by 9t8z28 View Post
    In the newest issue of GM HighTech Performance: The GM Performance Division shoehorned an LS7 into a 99 Camaro.
    How did it work out? Is the LS7 the same dimensions as the LS1 or is it bigger??

  7. #7
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by 9t8z28 View Post
    In the newest issue of GM HighTech Performance: The GM Performance Division shoehorned an LS7 into a 99 Camaro.
    Not really shoehorning...the blocks are the same size.

    The LSx series all have the basic same design on the outside. I run an LQ9 truck block in mine, motor mounts are the exact same.

  8. #8
    Make real real sure Johns00Z28's Avatar
    Join Date
    May 2006
    Location
    Germantown, MD
    Age
    40
    Posts
    2,404

    Black
    2000 Z-28

    I'm not familiar w/ the LQ9 block, can you share any information on this.....531rwhp sounds pretty stout.

  9. #9
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    Quote Originally Posted by Mr. Luos View Post
    Not really shoehorning...the blocks are the same size.

    The LSx series all have the basic same design on the outside. I run an LQ9 truck block in mine, motor mounts are the exact same.
    Sorry! I used there termanalogy! But they did have to put a tubular K-Member in for clearance of the dry sump system which took the place of the battery.

    Im not sure, but in the pics, it looks like the intake is about 1" from the cowl.

  10. #10
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by Johns00Z28 View Post
    I'm not familiar w/ the LQ9 block, can you share any information on this.....531rwhp sounds pretty stout.
    I am going to use the word 'basicly' very loosely.

    It is basicly an iron block LS2.
    The block has little to do with power output.
    The LQ9 is a truck block. 6.0L (364) stock, and I had mine stroked to 6.6L or 402ci.

  11. #11
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    Quote Originally Posted by Mr. Luos View Post
    I am going to use the word 'basicly' very loosely.

    It is basicly an iron block LS2.
    The block has little to do with power output.
    The LQ9 is a truck block. 6.0L (364) stock, and I had mine stroked to 6.6L or 402ci.
    Mr. Lous that sounds awesome! How does your truck block compare to the new LSX block that is coming out?

  12. #12
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    It doesn't.

    That thing will be badass. Damn near any amount of cubes you want.
    My max cubes is 408. Alright at 402....so I am good.
    Most that get the truck block get the 408 now, I got mine on special about 2 years ago now.

  13. #13
    Pathelogical Liar BlackLT1Z28's Avatar
    Join Date
    Aug 2006
    Location
    Missouri
    Age
    30
    Posts
    1,476

    Black
    94 Camaro Z28

    Quote Originally Posted by Mr. Luos View Post
    It doesn't.

    That thing will be badass. Damn near any amount of cubes you want.
    My max cubes is 408. Alright at 402....so I am good.
    Most that get the truck block get the 408 now, I got mine on special about 2 years ago now.
    That was a fun process, watching you piece that thing together last winter. The best part, I think, was the lifters in the pan on the stove. "So, what's for dinner again???"

  14. #14
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS


    Click for full size

  15. #15
    Pathelogical Liar BlackLT1Z28's Avatar
    Join Date
    Aug 2006
    Location
    Missouri
    Age
    30
    Posts
    1,476

    Black
    94 Camaro Z28

    Ahh...that brings back memories.
    That's funny as hell to see again.

  16. #16
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    Quote Originally Posted by Mr. Luos View Post

    Click for full size
    What flavor is that?

  17. #17
    Pathelogical Liar BlackLT1Z28's Avatar
    Join Date
    Aug 2006
    Location
    Missouri
    Age
    30
    Posts
    1,476

    Black
    94 Camaro Z28

    Quote Originally Posted by 9t8z28 View Post
    What flavor is that?
    I don't know, but I think its been slighty basted with 5W-30...

  18. #18
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    I bet that smelled good! Mmmmmm-Yummy!

  19. #19
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Cheapest damn 5w-30 I could find.

  20. #20
    Make real real sure Johns00Z28's Avatar
    Join Date
    May 2006
    Location
    Germantown, MD
    Age
    40
    Posts
    2,404

    Black
    2000 Z-28

    I noticed the times of the postings are off....weird. Anyhow, I guess I'd just like to know what would be a cost effective way of adding cubes and hp w/out breaking the bank like purchasing a crate 7.0L would be for me. Is it expensive to get the engine rebuilt w/ a stroker crank and higher compression heads?

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

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

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
  •