It's not a job for a novice, you didn't say you were upgrading, so I assume you are simply replacing. First if you determine bottom end of engine is worn out and needs a rebuild or replacement, get a few estimates for each, You can either rebuild the existing or replace it with a lower mileage junkyard motor and have it done by a small shop or you can try to do it yourself, but still need to decide which route to go to refresh engine.
The engine is removed out the bottom on 2001 Dodge Grand Caravan.
The 2002 Dodge Grand-Caravan has a V6 engine.
The 2004 Dodge Grand-Caravan has a V6 engine.
The 2014 Dodge Grand-Caravan has a V6 engine.
The 2005 Dodge Grand-Caravan has a V6 engine.
The 2007 Dodge Grand-Caravan has a V6 engine.
The 2010 Dodge Grand-Caravan has a V6 engine.
The 2012 Dodge Grand-Caravan has a V6 engine.
The 2008 Dodge Grand-Caravan has a V6 engine.
The 2009 Dodge Grand-Caravan has a V6 engine.
The 2001 Dodge Grand-Caravan has a V6 engine.
The 2011 Dodge Grand-Caravan has a V6 engine.
The 2013 Dodge Grand-Caravan has a V6 engine.