w-2 heads info

If I'm not mistaken...... And if these heads are Econ w2's...... There should be a dual exhaust bolt pattern. One set for would be for a regular exhaust manifold. So, if I'm right, you could use that if you wanted to or get any header that is specific for your application.

This is true, some do have the std pattern. But there is a major port shape difference, it will work, but its a compromise. So really, true W2 headers are the way to go. No reason to run W2s on a motor with manifolds unless its a class rule deal.