Register now to get rid of these ads!

Is it possible to flip a SBC exhaust manifold? My weird engine swapped project.

Discussion in 'The Hokey Ass Message Board' started by Kustomkarma, Sep 25, 2012.

  1. Magnum Wheel Man
    Joined: May 11, 2011
    Posts: 424

    Magnum Wheel Man
    Member

    in my old CJ-5, with a SBC, I flipped a set of Hooker "shortie" Headers upside down, with some elboes & a pair of SuperTrapps, back in the late 80's early 90's... goal was a street legal exhaust that didn't go under the truck, to get damaged by extreme wheeling... whole exhaust system was the size of a normal set of headers

    so I'd bet you could pretty easily find or modify the parts needed to do it
     
    Last edited: Sep 26, 2012
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 50,942

    squirrel
    Member

    I know, the ones I pictured are the late 60s 340 parts, they have the nice big curves because they're trying to make them flow. Here's the early one, it's pretty wild too
     

    Attached Files:

  3. PonchoJohn
    Joined: May 1, 2009
    Posts: 238

    PonchoJohn
    Member
    from Fresno, Ca

    If you were to use the 80's truck manifold, you can make a simple "L" bracket from angle iron that would bolt to an accessory hole on the end of the head. The other end of the "L" would be tapped so a bolt can screw into it. Tighten this bolt so it puts pressure on the end of the exh. manifold and retain w/ a jam nut- Voila! now you can bolt a late model manifold onto an earlier head.
    Another option is to look at the TPI/TBI F-body cars of the 80's/90's.. I recall my old '88 Trans Am had some large (for a SBC) exhaust manifolds that were of a different configuration.
    HTH :)
     
  4. Weedburner
    Joined: Nov 16, 2010
    Posts: 216

    Weedburner
    Member
    from Wa State

    I flipped cast manifolds upside down / swapped sides when i put a sbc into a '61 Falcon back in the '70s. Cut holes in back of the towers for the exhaust which exited behind the front tires. Can't remember what the manifolds were off of, but they were installed upside down.
     
  5. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,253

    Hackerbilt
    Member

  6. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    Some interesting answers here! The first order of business is putting the stock steering back together. Currently, the lower ball joints are turned back to front and swapped side to side to make it front steer - so all the geometry is wrong. I've got some stock parts coming so we'll see where the clearances end up. I'm looking at the steering box as a constant variable, so everything will have to be worked around that. I might end going out the fenderwell, but I'm really trying to avoid it.
     
  7. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

  8. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    I'm basically thinking of doing the same thing - up and over - just exiting to the front. It's going to look a little funky I'm sure - just as long as it works. :D
     
  9. williebill
    Joined: Mar 1, 2004
    Posts: 2,938

    williebill
    Member

    my old 39 had the 265 manifold on the left,worked fine for a very mild 283. Port size didn't affect me the way I drove it.
     
  10. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 5,780

    Ebbsspeed
    ALLIANCE MEMBER

  11. aaggie
    Joined: Nov 21, 2009
    Posts: 2,531

    aaggie
    Member

    I am currently finishing up a project '89 Mustang fastback with SBC engine. I have a collection of almost all of the exhaust manifolds Chevy ever built and I used a right side pickup manifold on the drivers side that exits to the front and another pickup left side that exits down behind the stock mechanical fuel pump. I will try and attach a picture.
     
  12. terryble
    Joined: Sep 25, 2008
    Posts: 541

    terryble
    Member
    from canada

    I am guessing there have been a few heart attacks in HAMB land after reading about these Chevys in Mopars and Fords. That's the only thing that could explain the lack of nasty responses!
     
  13. dad-bud
    Joined: Aug 22, 2009
    Posts: 3,884

    dad-bud
    Member

    I have no problems with SBC's so I've got no axe to grind, as it were, but if the motor is fresh and strong, why not try selling it and buy a Mopar, then you should be able to squeeze one into where it was supposed to be.
    You may even be able to get a 440 which should have plenny-o-torque to provide lo-cost get up and go.
    It may make your life a whole lot easier ............!?
    Dunno, just a suggestion.
     
  14. squirrel
    Joined: Sep 23, 2004
    Posts: 50,942

    squirrel
    Member

    Squeezing a 440 into an early A body isn't going to make life any easier....

    I wonder if the pass side manifold that goes below the plugs, will clear the steering shaft? or if it drops down to far? that's why I suggested the "above the plugs" version
     
  15. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    Thanks for all the responses. It's gonna have to be a try it and see kinda thing after I get the steering sorted out. Just to recap. These things are all new and already installed:
    custom aluminum radiator, Jacobs ignition, cam with gears and chain, Holley carb, custom driveshaft, complete exhaust all the way back to the rear bumper, edelbrock manifold, electric fan, etc. etc. It's all in there and works well - so the SBC will be staying put. My main help on the project is GM Master Certified and doesn't like Mopar drivetrains. I happen to like Mopars, so it's a good fit. Not to mention the price was within my budget - and a good buy. I'll try to get some pics posted when I get a chance.
     
  16. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    I'm a little surprised myself, but it's what I've got and I ain't changing it. To me, Hot Rodding is all about trying new things and making due with what you've got - hopefully mind over wallet engineering.
     
  17. JCShiels
    Joined: Jul 19, 2009
    Posts: 77

    JCShiels
    Member

    Back in the early 60's when the "compacts" came on the scene they all got SBC's installed and Hot Rod ran articles. Some one on here must have the article from back then where the Valiant recieved a SBC, it would show how they solved the problem of the exhaust.
     
  18. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,695

    56sedandelivery
    Member Emeritus

    Personally, in this case, I would use the early 265 SBC mainfolds, only open up the ports. I knew a guy once that did a 289 into a Pinto swap, he just swapped the exhaust manifolds side-to-side, so they dumped out the front, and went from there with the exhaust. Worked fine for him. There were a lot of manufacturers who made fenderwell headers for the Darts/Valiants of the day (273-318-340 engines); I wonder if there are commercially made fenderwell header for a SBC that would work with the Dart (Chevy II/Tri-Five maybe)? I think the over-the-plug, log manifolds of the 305 engines, though they may work, are just too ugly to consider for anything other than a last resort. Butch/56sedandelivery.
     
  19. GregCon
    Joined: Jun 18, 2012
    Posts: 689

    GregCon
    Member
    from Houston

    God will punish you for putting a SBC in a Dart....
     
  20. Bad Eye Bill
    Joined: Sep 1, 2010
    Posts: 841

    Bad Eye Bill
    Member
    from NB Canada

    I've been biting my tongue for a while now.

    You can always tell Chevy guys when you see them but you can't tell them much.
     
  21. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    I didn't put it there. :p
     
  22. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    I would love to see this article if someone has got it as the next logical progression for this car after I get it on the street is to do a 1960's flavored build.
     
  23. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,695

    56sedandelivery
    Member Emeritus

    I did a little looking, and this is what I found on that auction site we all know and love, (E-Bay, there, I said it!). If you look up item # 380464486233, you'll find a set of headers meant for a turbocharger setup that exit to the front (I have nothing to do with this product/vendor). Seems like a way out to me, fairly cheap, and looks good too. And who cares what engine goes into what car, as long as it's not an import engine of course. Butch/56sedandelivery.
     
  24. Now what i want to know is how did they fit the dist in with the wiper motor in the way? Also isin't the starter on the driver side? that will make for more trouble with the steering. Post up some pics of this.
     
  25. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,253

    Hackerbilt
    Member

    Starter is on the right side...oil filter on the left but far back and vertical...
     
  26. squirrel
    Joined: Sep 23, 2004
    Posts: 50,942

    squirrel
    Member

    chevy and mopar small blocks have the distributor in the same place
     
  27. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    My little Dart happens to have a recess in the firewall right where the distributor sits. The distributor itself is also some kind of one off custom piece. The wiper motor for this year is in a slightly different position than other years. I promise I'll get some pics this weekend so you guys don't go crazy lol. I've got some parts coming so I can put the steering back the way it should be so I should be able to make some progress in the next couple of weeks. Now if I could just find a damn gas cap that doesn't cost a million dollars.
     
  28. JCShiels
    Joined: Jul 19, 2009
    Posts: 77

    JCShiels
    Member

    In the Oct. 1960 Hot Rod was the article on a Chevy V8 into a Valiant. It was actually the cover story.
     
  29. Kustomkarma
    Joined: Mar 31, 2007
    Posts: 898

    Kustomkarma

    Thanks for the info!
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.