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  1. johnson1550

    My Love/Hate with making headers

    Tubular Automotive also has "make your own" kits in numerous sizes. You can ask them to include some connector pieces (a 2" OD pipe will take a 1 7/8" OD connector or slip piece) and you can put them together without having to weld them in place for the layout. Tubular Automotive is in Mass. at...
  2. johnson1550

    Modifying headers, what size collector should I use???

    I would agree with what has already been stated. 1 5/8" primaries are the size for some small block applications. 1 7/8", 2", 2 1/8" primaries are what you will usually find used on the big block applications. Time to search for another set of the long tube 4 into 1 style headers. Those tri-y's...
  3. johnson1550

    Modifying headers, what size collector should I use???

    If they are indeed 1 3/4" primaries, I would think a 3" collector would do a good job.
  4. johnson1550

    My Love/Hate with making headers

    Where did you buy the mandrel bends?
  5. johnson1550

    Modifying headers, what size collector should I use???

    What size are the primary tubes?
  6. johnson1550

    what headers to run on a big block duster

    Tubular Automotive in Mass. used to make a header for this car. It's called their ES-15. You may want to give them a try. They can also make a custom set for your car given the ground clearance. Their number is 617-878-9875
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