Become a ltxtech.com member, Click here to register!

Results 1 to 4 of 4

Thread: Head repair

  1. #1
    InActive Member


    Status
    Offline
    Join Date
    Mar 2014
    Name
    Todd Oaks
    Vehicle
    94 Z28 M6
    Location
    Sourthern Maryland
    Posts
    2

    Default Head repair

    I have a set of 643 casting heads that I ported/polished on a flow bench and ran for 6 months with no issues. The engine was pulled and sat on an engine stand for 2 months. Upon first start up the #2 exhaust port is leaking coolant. I took the header off and pressurized the cooling system and it appears to be leaking from where I circled in the picture. Its at the machine shop awaiting inspection but I just wanted to see if anyone else has had experience getting a crack repaired in the same area to see what my chances are. The machinist doesn't like my chances but he also told my porting and polishing is useless so he may not be familiar with this head casting.
    Attached Images Attached Images
    94 Z28 M6 DGGM
    Under Construction

  2. #2
    Lurker


    Status
    Offline
    Join Date
    Dec 2011
    Vehicle
    1994 Firebird Formula. Manual.
    Location
    Too close to the cities, MN
    Posts
    261

    Default

    I don't have much to add other then if you need a head I have an extra. Don't know the casting number because I'm at work. It's off my 94 with 145k miles.. Other head has a really bad spark plug thread...

  3. #3
    InActive Member


    Status
    Offline
    Join Date
    Mar 2014
    Name
    Todd Oaks
    Vehicle
    94 Z28 M6
    Location
    Sourthern Maryland
    Posts
    2

    Default

    I dropped the head off at a well known race shop today and the owner seems to think he can fix it, just depends on how much its gonna cost to see if it will be worth it or not. So I'm crossing my fingers but if worst comes to worst how much would you sell the head for?
    94 Z28 M6 DGGM
    Under Construction

  4. #4
    Lurker


    Status
    Offline
    Join Date
    Nov 2013
    Name
    David
    Vehicle
    97 355 Green TA
    Location
    Deltona, FL
    Posts
    303

    Default

    I also have an extra head for cheap. 97 trans am 123k take off. The other one is no good but this one is fine. 100 plus shipping
    97 TA (Rebuilding):Stock bottom end 355, CAI, 52 TB, Ported intake and lt1 heads, 227/235 LE cam, Ultra-Pro-Mags 1.6RR's, Hooker LT's, single flowmaster, McLeod Clutch. Need a 9inch rear to handle the abuse

    FLOGROWN

Tags for this Thread

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
  •