O2 sensor extension harness for LS7 crate engine?
I have an LS7 crate engine and the GMPP controller kit for the LS7. I need O2 sensor harness extensions and ordered two from Corvette Central that was for the C6 Z06 corvette.
When I got them I realized that the connectors are different, the ones I got where square shaped and the ones I had where kind of triangular with one of the tips cut of slightly. Not sure if that description makes any sense but that is the closest I get

My own investigation suggest that the standard C6 seem to have 4 O2 sensors and the front two might have the kind of connectors I'm looking for but this is not verified yet.
Any ideas or suggestions about this?
Thanks,



