Results 1 to 3 of 3

Thread: headers are thinner then intake manifold

  1. #1
    Registered User
    Member ID
    CZCC-16936
    Join Date
    May 2008
    Location
    arizona
    Posts
    81

    Default headers are thinner then intake manifold

    I bought used headers for my 260z and they seem to line up. The head is square exhaust ports so are the headers. The problem is the intake manafold is 1/2 inch thick and the headers are 1/4 inch thick. How does this work with the circle piece that holds both of these down and together.

  2. #2
    Registered User Walter Moore's Avatar
    Member ID
    CZCC-3035
    Join Date
    Oct 2002
    Location
    Indianapolis
    Posts
    1,833

    Default

    That appears to be a common problem with some headers. See this thread for example:
    http://www.classiczcars.com/forums/s...eader+mounting

    I know it is from 2004, but the "solution" seems to be that you need to make or find stepped washers to make up the difference in height.
    '71 240Z, Because any fool can drive fast in a straight line.

  3. #3
    240Z Elec. Upgrade guy Zs-ondabrain's Avatar
    Member ID
    CZCC-4921
    Join Date
    Sep 2003
    Location
    Marysville, WA. U.S.A.
    Age
    49
    Posts
    4,004

    Default

    You need "Half Moon" spacers. It's basically a 1/2" thick washer, with 1/2 of the circle diameter shaved to 1/4". The 1/4" part is for the intake manifold side and the 1/2" side would be for the header side.

    I had to use those on the 71' Z that I used to have. Worked like a charm.
    Dave
    Rate my Z at Car Domain.com
    My 70' 240Z, Daily Driver

    My Parking Light and Headlight Upgrade Harness's at MotorSport Auto
    HLH - PLH - SCP - ZXP's at MSA *They accept PayPal!!*
    Headlight Upgrade Harness info here at ClassicZCar Club
    HLH info at CZCC Do a search for info on the other upgrades I offer.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. exhaust manifold to headers
    By zdude1967 in forum Exhaust (S30)
    Replies: 3
    Last Post: 03-16-2009, 06:12 PM
  2. 77 & 78 Intake Manifold Compatibility
    By ea6driver in forum Engine and Drivetrain (S30)
    Replies: 11
    Last Post: 01-27-2009, 06:12 AM
  3. which intake manifold has bigger runners?
    By z_boi in forum Fuel Injection (S30)
    Replies: 3
    Last Post: 07-21-2004, 12:01 PM
  4. Intake Manifold Leaking Coolant
    By sterd in forum Carburetors (S30)
    Replies: 2
    Last Post: 06-16-2003, 08:10 AM
  5. L28 NA vs. Turbo Intake Manifold
    By Guycali in forum Engine and Drivetrain (S30)
    Replies: 5
    Last Post: 05-19-2002, 05:44 PM

Tags for this Thread

Bookmarks

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
  •