Small Block Full Length Header Options - Ground Clearance

Looking at the pictures, I'd say you've got

6" to the header flange
8-1/2" to the frame
2-3/4" from the frame to the LCA
26 5/8" to the fender lip
...

I have:

2 3/8" TTI headpipe flange edge to ground.

Yes, they scrape. I have to be careful.