Are late 90's early 2000's Ford Mustang V6 engines prone to blown head gaskets?
The single port 3.8L's in general were known for head gasket problems, Windstars, T-Birds, Taurus, and Mustangs were all affected. For the Mustang the 94-98 V6 models head gasket failure is a pretty common issue. The split port 3.8L, was much more reliable in that respect. 1999-2004 Mustangs had that the split port 3.8L and generally don't have nearly as many blown head gaskets as the earlier cars do.