Reason is I found a 6870 for a price I couldn’t say no to and grabbed it
it’s a h cover front with a 1.00 twin scroll rear on it
size comparison compared to the 6466
and placed it on the manifold to see how everything was going to fit, the exhaust bolts straight back on, the intake fits straight back on. I just need to weld a 90 onto the front cover and the intercooler piping will fit straight back up.
I’ve sent the turbine housing for ceramic coating, this has the new style rear housing which as @BK pointed out gives a lot more room for the nuts/bolt heads to fit