+ Reply to Thread
Results 1 to 4 of 4

Thread: I Know we have some fabricators here..

  1. #1
    Opelitis since 1984 GoinManta is on a distinguished road GoinManta's Avatar
    Join Date
    Mar 2002
    Location
    Midlothian, VA
    Posts
    2,232


    I Know we have some fabricators here..

    I need a custom ehxaust manifold for the LK5.. NO one makes one..

    Best I can find is a 5 cylinder version.

    If I sent someone the manifold and the gasket.. could someone make me up a header? I don't need anythign fancier than the original shape minus the built in CAT.

    I may need it to go a little lower than the original OUt location.. but wont know that until I get the motor in.

    The flane looks pretty straight forward.. its flat with a few holes in it. So I am sure it could be CNC'd. I would even do the CAD work for it.

    BTW.. the guys on an colorado forum are also looking for headers too for the I-4 so .. it could be made into a production run.

    Charles
    CURRENT
    '06 Pontiac GTO
    '71 Opel Kadett 4 Door 36D (w/ Opel Parts & Service 2.0L)
    '74 Opel Manta (Bens Manta)
    '74 Opel Manta (w/ LK5 transplant)

    Past
    '73 Opel Manta (Blue Max)
    '75 Opel Manta (Yellow)
    '85 Bitter SC
    '73 Opel Commodore B GS
    '73 Opel GT (w/ Vinyl Roof)
    At least 16 or So Parts Opels

  2. #2
    Restoration Dude blancojp will become famous soon enough blancojp's Avatar
    Join Date
    Oct 2005
    Location
    Acworth, GA
    Posts
    1,150


    Quote Originally Posted by GoinManta View Post
    I need a custom ehxaust manifold for the LK5.. NO one makes one..

    Best I can find is a 5 cylinder version.

    If I sent someone the manifold and the gasket.. could someone make me up a header? I don't need anythign fancier than the original shape minus the built in CAT.

    I may need it to go a little lower than the original OUt location.. but wont know that until I get the motor in.

    The flane looks pretty straight forward.. its flat with a few holes in it. So I am sure it could be CNC'd. I would even do the CAD work for it.

    BTW.. the guys on an colorado forum are also looking for headers too for the I-4 so .. it could be made into a production run.

    Charles
    The vortec 2800 is a take off from the vortec 4200 L6 engine. I would do the following:
    1) Get an exhaust gasket from a 4200 and compare it to the 2800.
    2) If it looks like it might work, cut down the 4200 manifold to fit the 2800.

    I believe this would be the cheapest way to go, just some work on your part.
    JB
    Restore, Customize and Conquer!!!

    '73 Opel GT Convertible "Stealth"
    '70 Opel GT - 4 speed "Lucy"
    '72 Opel GT - 4.0L V6 automatic "Animal"
    '72 Opel Ascona 1900 "Junk Yard Dog"
    '71 Opel Manta Automatic "Coco"
    '72 Pontiac Ventura II SD455 "Monster"
    '07 GMC Sierra 1500 - Daily driver

  3. #3
    Project 1450 supporter... RallyBob has a spectacular aura about RallyBob has a spectacular aura about RallyBob has a spectacular aura about RallyBob's Avatar
    Join Date
    Mar 2002
    Location
    Pleasant Valley, CT
    Posts
    7,554
    RallyBob has made a donation to the forum!

    Charles, the tough part might be getting somebody to build the header without the car. I personally won't do that anymore...too many things can go wrong because of outside variables I have no control over!

    Best bet is to get the engine and tranny mounted on the actual mounts you will use before going any further, and find someone who can build it locally. It's amazing how just 1/8" of deviation in a mount can affect the exhaust fitment.
    My Flickr photos.
    Jan. 3, 1984 - Jan. 3, 2009, that's 25 years of this damn Opelitis!
    C.R.L. 9/22/69 - 12/8/99, J.M.L. 3/3/43 - 6/15/04
    E.G. Sauer 2/26/66 - 2/18/10. Rest in peace big guy...

  4. #4
    Opelitis since 1984 GoinManta is on a distinguished road GoinManta's Avatar
    Join Date
    Mar 2002
    Location
    Midlothian, VA
    Posts
    2,232


    Quote Originally Posted by blancojp View Post
    The vortec 2800 is a take off from the vortec 4200 L6 engine. I would do the following:
    1) Get an exhaust gasket from a 4200 and compare it to the 2800.
    2) If it looks like it might work, cut down the 4200 manifold to fit the 2800.

    I believe this would be the cheapest way to go, just some work on your part.
    All I could find was the I-5 version and from the looks of those two the "extra" cylinder is in the middle. which would make it difficut.

    Calling the guys that make that one to find out if they can do a 4 cly version..

    But thought maybe if someone here could CNC the Flange.. I could sell those to the Colorado guys.. and maybe get a header made locally for me. Since it would seem I would like the collector to be higher more like where it joins at the factory. This header doesnt solve the problem of trying to wedge the CAT between the block and firewall.
    Attached Images
    Last edited by GoinManta; 07-08-2009 at 11:43 AM.
    CURRENT
    '06 Pontiac GTO
    '71 Opel Kadett 4 Door 36D (w/ Opel Parts & Service 2.0L)
    '74 Opel Manta (Bens Manta)
    '74 Opel Manta (w/ LK5 transplant)

    Past
    '73 Opel Manta (Blue Max)
    '75 Opel Manta (Yellow)
    '85 Bitter SC
    '73 Opel Commodore B GS
    '73 Opel GT (w/ Vinyl Roof)
    At least 16 or So Parts Opels

+ Reply to Thread

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