Results 1 to 7 of 7

Max bore on iron 6.0l

This is a discussion on Max bore on iron 6.0l within the Internal Engine forums, part of the LSx Technical Help Section category; Does anyone know how far I can have the iron block 6.0l bored out to? Also I found a set ...

  1. #1
    Junior Member
    Join Date
    May 2009
    Location
    Warrenton, MO
    Posts
    6

    Max bore on iron 6.0l

    Does anyone know how far I can have the iron block 6.0l bored out to? Also I found a set of 6.2l pistons and rod cheap and was wondering if they would work in the gen III blocks with the stock crank or even a stroker crank?

  2. #2
    Junior Member
    Join Date
    Apr 2009
    Location
    c/s Colorado
    Posts
    15
    I was under the impression that you could bore the iron block all the way out to accept 4.125" pistons. If this is wrong I hope someone says so because that is exactly what I planned on doing.

    I was going to do 4.125" pistons and a 4" stroke. Hopefully someone with some experiance will post here.

  3. #3
    Member wenn_du_weinst's Avatar
    Join Date
    Aug 2008
    Location
    South Dakota
    Posts
    198
    only problem with going so big is if you score the cylinder wall you are out a block because you can't rebore larger

  4. #4
    Veteran Hi-Po's Avatar
    Join Date
    Nov 2005
    Location
    Florida
    Posts
    10,461

    Black
    1999 TA WS.6

    Quote Originally Posted by hpglow View Post
    I was under the impression that you could bore the iron block all the way out to accept 4.125" pistons. If this is wrong I hope someone says so because that is exactly what I planned on doing.

    I was going to do 4.125" pistons and a 4" stroke. Hopefully someone with some experiance will post here.
    No way can you bore a plain jane iron block out to 4.125".

    Most go .030 over, some have gone to .060 over.

    Either way, If you plan on going any where past .030 over, you need to get it sonic tested for wall thickness. Depends also on what power levels you are planning on running. I believe they want .200" wall thickness after all boring is done. Take into consideration the added power you will get from gaining the FEW CI from boring, and then think about the possible weakness you are putting in the cylinder wall. Is it worth it?

    The motto is still, and always will be for a 'max' bore anything...


    Sonic testing.

  5. #5
    Junior Member
    Join Date
    May 2009
    Location
    Warrenton, MO
    Posts
    6
    Thanks for the info. Really doubt I'll do any boring at all just mainly curious. Waiting on the block to come in and see what shape the cylinder walls are even in. It really seems hard to find any concrete info and specs on the LS engines yet.

  6. #6
    Manhattan Trans Am SHovV's Avatar
    Join Date
    May 2008
    Location
    Tx
    Posts
    182

    Medium Blue Metallic
    '99 T/A-7.0L-6spd

    bore it and have darton sleeves put in

    18x12 Classics w/335's and room for 345's

  7. #7
    Junior Member
    Join Date
    Dec 2007
    Location
    Austin, TX
    Posts
    92

    Pewter
    2002 Trans am WS6 T-top

    I did some research on this for my future build up and found that early 6.0L blocks with iron heads 1999 to 2002 half year, is suggested that it be no more than .010. Those early years they need to be sonic checked. The late model can be .030 max bore. Sonic checked just for insurance. A few machine shops in my area that I called really did not want to over bore it by .010. I guess so as not to lose the time and man hours if it turned out to thin.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Question: How much to bore?
    By farmer_ron_99 in forum Internal Engine
    Replies: 2
    Last Post: 08-04-2009, 09:51 AM
  2. Max bore on 6.2l?
    By 99transamC/FIA in forum General Help
    Replies: 0
    Last Post: 08-14-2008, 02:35 PM
  3. 5.3 bore
    By 53chevy in forum Internal Engine
    Replies: 4
    Last Post: 05-17-2008, 02:16 PM
  4. 6.0 Iron Block - stock bore
    By Syclone354 in forum Parts Wanted / Trade
    Replies: 4
    Last Post: 03-01-2008, 06:35 PM
  5. bore
    By 01tao6gto in forum Internal Engine
    Replies: 2
    Last Post: 11-15-2007, 10:30 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
  •