There have been reports of premature head gasket failure; an updated gasket design is available to correct this problem.Google+
Car Problem Reports
Dodge Caravan Head Gasket May Fail Prematurely
Dodge Caravan Problem
Engines Affected: 2.4L 4 Cylinder, 3.3L V6
Average Mileage: 100,755 mi (20,020 mi - 147,000 mi)
Visitor, 1999 Dodge Caravan, 2.4L 4 Cylinder, 100,000 mi
Had to replace 120,000 engine because of main-bearing failure - used 100,000 mi engine installed. Leaked oil around the head gasket very badly. Will replace head/ and gasket - there's also a lifter knock in it. I have the old engine still so I will swap off the good head for the bad.