Sure, though the file you need to edit will differ based off the Display Template you choose for the product.
I'll use BVC5 as the example:
Make sure you create a backup of these files before you start:  \store\BVModules\ProductTemplates\Bvc5\Product.aspx and \store\BVModules\ProductTemplates\Bvc5\Product.aspx.vb
In Visual Studio, open the file \store\BVModules\ProductTemplates\Bvc5\Product.aspx
Method 1 (Put it in the Long Description):View the code for the page.   Find the line 
Code:Me.lblDescription.Text = Me.LocalProduct.LongDescription
 Change it to:
Code:Me.lblDescription.Text = Me.LocalProduct.ProductName & "<br/>" & Me.LocalProduct.LongDescription
 This will make it look like:
ProductName
ProductLongdescription here.  This product is great because ______ .
Specs:  Great product, etc etc etc.
Note:  This will not change your database.  It just changes the way the Long Description field looks on the page.  
Method 2 (Add it under the picture):Add a new label above the lblDescription label.
Name the new label something like lblName2.
Then view the code for the page.   Find the line 
Code:Me.lblName.Text = Me.LocalProduct.ProductName
  under it add:
Code:Me.lblName2.Text = Me.LocalProduct.ProductName
 This should be within the PopulateProductInfo Sub.
FinallySave, Rebuild the page, Upload and test :)
Note:  I haven't actually tested this. . . just did it off the top of my head, so make sure to test it out first.