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4.3 Exhaust Manifold Options

Discussion in 'Builds and Fabricators Forum' started by Phil P, Jul 19, 2017.

  1. Phil P

    Phil P Member

    My drivers side header on my cj3a just rusted out. I was thinking of going over to cast iron manifolds. Can any body suggest a drivers side manifold that might make it around my saginaw convertion.
     
    Phil P, Jul 19, 2017
    #1
  2. scott milliner

    scott milliner Master Fabricator

    Mid 1980's 229 V-6 manifolds. Or if you have knock sensors in the heads like I do. 1990's Chevy Astro Van that I machined 1/4" off the mating surface for more room. The early manifolds go over the spark plugs and the others go below.
    The 4.3 manifolds also tend to cook the motor mounts.
     
    scott milliner, Jul 21, 2017
    #2