Index: modules/block/block.admin.inc
===================================================================
--- modules/block/block.admin.inc	(revision 1)
+++ modules/block/block.admin.inc	(working copy)
@@ -206,7 +206,7 @@
   $form['settings']['title'] = array(
     '#type' => 'textfield',
     '#title' => t('Block title'),
-    '#maxlength' => 64,
+    '#maxlength' => 128,
     '#description' => $block->module == 'block' ? t('The title of the block as shown to the user.') : t('Override the default title for the block. Use <em>!placeholder</em> to display no title, or leave blank to use the default block title.', array('!placeholder' => '&lt;none&gt;')),
     '#default_value' => isset($block->title) ? $block->title : '',
     '#weight' => -18,
Index: modules/block/block.install
===================================================================
--- modules/block/block.install	(revision 1)
+++ modules/block/block.install	(working copy)
@@ -80,7 +80,7 @@
       ),
       'title' => array(
         'type' => 'varchar',
-        'length' => 64,
+        'length' => 128,
         'not null' => TRUE,
         'default' => '',
         'description' => 'Custom title for the block. (Empty string will use block default title, <none> will remove the title, text will cause block to use specified title.)',