Hi George,
I am very happy with my experiences as a Viking customer.
Everything was delivered on time, as promised.
Firewall forward included engine mount adaptors (AeroVee mount to Viking), cowlings, propeller, spinner, ECU's, gearbox, radiator, oil cooler, etc. They provided pretty much everything I needed except hardware and misc. bits needed for my Dynon system.
Viking now offers a "grab bag" of misc. bits such as plumbing fittings, coolant, etc. that pretty much makes the firewall forward complete. You could buy these items separately, but you will pay more for shipping from all the individual suppliers.
Viking has a great installation manual that you can download, plus a large number of installation videos they have posted to YouTube.
Support from Viking has been very good. I didn't need much in the way of support, but when I e-mailed them with my questions I always received a response within 24 hours.
The only difficulty I have had with my Viking installation is that I have a very active career and home life that don't allow me to work on the plane as much as I would like. Also, my plane is in a hangar 25 miles from home, so I don't get to work on it every night as I would if it were in my garage.
I have detailed all my experiences on my web page:
www.mykitlog.com/donbowenI don't drink anyone's cool aid. Not Sonex's nor Viking's.
I love the Waiex, but for me the AeroVee was a complete disaster.
I believe this will be an outstanding engine/airframe combination that will suit my needs.