The ECi and Superior engines are made from PMA'ed parts. Meaning they are essentially Lycoming clones but without the data plate.
In fact, my ECi engine is assembled using the Lycoming overhaul manual.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC