Ls7
+ Reply to Thread
Results 1 to 7 of 7

Thread:
Ls7

  1. #1
    Member boataholic's Avatar
    Join Date
    Apr 2009
    Location
    Murrieta, CA
    Posts
    39

    Default Ls7

    I am in the process of restoring an HTM SR-24 and looking into different power options. Anyone running an LS7 block and if so how is the performance? All replies are greatly appreciated. Thanks.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    im runnin a homemade turbo ls7 or will be soon lookin for 800+hp/ftlbs outta it by 6500 on 16lbs of boost/pumpgas/water meth injection. i think its silly to invest big $$$$ in heavy bigblocks these days when its beginnin to get so easy to pull huge power numbers outta daily driven lsx motors that last yrs doin it. i took a 5.3 truck motor , went thru it and converted it all to ls7 valvetrain and timing components, wasn't too hard, took alil head scratchin was all.

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  4. #3
    LP-25.com Infomaniac's Avatar
    Join Date
    Dec 2007
    Location
    New Port Richey, FL
    Posts
    16,855

    Default

    Daily driver LSX ????????

    LS maybe.
    If For Some Reason I Do Something Worthy Of Recognition. God Provided The Ability And Deserves The Credit.


    QE 439 Twin Turbo

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    AKA Blownjet 468 Blowncat 509's Avatar
    Join Date
    Mar 2009
    Location
    Somewhere between Paso & L.A.
    Posts
    1,205

    Default

    were you refering to an ls7 454? if so, should be fine, but depends on the
    horsepower level that you are seeking. Blown? N/A?

  7. #5
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    Quote Originally Posted by Infomaniac View Post
    Daily driver LSX ????????

    LS maybe.
    the ls7 im used too aint a bbc i know alot of guys runnin lsx blocked motors in daily drivers, bud jus finished up a 455lsx for his 01 trans am, pretty cool deal. he's gotta "bandit" t.a. that's a solid 9 outta 10 car that's he's gonna match his 01 to. i can post thread after thread of guys pulling out 4.8/5.3/6.0 truck motors outta the wrecking yard, swapping cams and boosting, making over 650hp driving them back and forth to work etc for yrs. lsx motors jus get no respect i tell ya

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  8. #6
    Senior Member 65BEAVER's Avatar
    Join Date
    Nov 2008
    Location
    livonia mi
    Posts
    109

    Default

    A friend of mine has a pair of 450" ls7's in his 30ft skater and loves them. They made 730hp and like 620ft lbs, cast single 4 with fast efi. He ran them for a season before taking them out. The boat went 125 and still tuning. He learned that the world alum blocks sleeves were like .070-.080 at 4.165. so they are getting new sleeves, smaller bores and piston squirters. They should make more power being sealed up now.

  9. #7
    New here Beer:30's Avatar
    Join Date
    Feb 2008
    Location
    Bakersfield, CA
    Posts
    4,219

    Default

    Quote Originally Posted by Blownjet 468 View Post
    were you refering to an ls7 454? if so, should be fine, but depends on the
    horsepower level that you are seeking. Blown? N/A?
    Yeah - Like in my response to your PM - are you talking 2010 LS-7? or 1970 LS-7?
    Quote Originally Posted by gn7 View Post
    EFI is the wave of the future. There can be no denying it. Electronics have been on the leading edge of our entire lives. Not only os the magneto dead, but the standard issue CDI is wavering. Its all about total fuel, air AND spark control. Anybody that thinks its not has their head up their ass.


    2001 SleekCraft 30' Heritage SSB, open-bow mid-cuddy. 496HO / Bravo-I.

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Digg This Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95