NHTSA Complaint #11439955 — 2014 KIA SOUL

I took my 2014 Kia Soul into the dealer to have them do the 2 open recalls on the car, the one to update the knock sensor logic detection system and they also replaced the catalytic converter. 2 days later after picking up the car & only driving it 50 miles, the engine blew (head gasket blew) and it overheated all the way & there was white smoke coming out and the oil was milky. The dealer said that I would not be getting a new engine (like the recall said) and that I could have the had the head gasket replaced for around $1500 or that I could pay from $5000 to 8000 for a replacement engine. I feel really let down because it seems like the dealer acted in bad faith and didn't even contact Kia about providing me with a new engine. Before the engine blew, the KSLD system did nothing to alert us (because I think the engine was already messed up) Any help you can provide would be great. Thank you