Exhaust manifold contacts bell housing now. :-(

Discussion in 'Small Block Tech' started by 69WILD, Jan 20, 2022.

  1. 69WILD

    69WILD Gold Level Contributor

    We installed engine last evening but now the exhaust flange is against the bell housing. I guess I will just grind the housing a bit. :confused:
     

    Attached Files:

  2. Dr. Roger

    Dr. Roger Stock enthusiast

    Those exhaust manifolds of yours don't seem to want to fit anywhere. Not sure what is going on with them. Doesn't look like much needs to be ground off to make it fit.
     
  3. Fox's Den

    Fox's Den 27 years of racing the same 355 Buick motor

    did you put the reflex gaskets on there? I knew headers were easier lol
     
  4. 69WILD

    69WILD Gold Level Contributor

    Yes remflex. ....and correct not much to grind off. ....next my exhaust pipe will have to be tweaked so it doesn't rub something :rolleyes: :p
     
  5. sean Buick 76

    sean Buick 76 Buick Nut

    Very strange.
     
  6. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    That manifold must have been milled quite a bit at some point in its life.
     
    Mark Demko and 12lives like this.
  7. Fox's Den

    Fox's Den 27 years of racing the same 355 Buick motor

    ^^ right there is probably what is wrong with those manifolds.
     
  8. 69WILD

    69WILD Gold Level Contributor

    Yes. I had them milled about 30 years ago and installed remflex gaskets. I don't remember any clearance being close but apparently trueing up the heads and block added all up enough to cause the issue now. Maybe the machine shop took a bit more off the heads and block than I thought they would. :)
     
  9. Mark Demko

    Mark Demko Well-Known Member

    I was thinking the same thing, between the manifold milling, and exhaust side of the head milling you have tolerance stack up
     
  10. Fox's Den

    Fox's Den 27 years of racing the same 355 Buick motor

    all part of hot rodding
     

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