Poco

If you have ever imported a Blogger blog into WordPress you probably have some posts that were originally missing a title. During the import, a title (and post slug) was created for the post that looks like a large numerical value. I believe this is the original Blogger post ID, I guess the importer needed something to use.
What this plugin does is replace those ugly numerical titles with the first few words of your post, like Blogger did. By simply enabling the plugin, any post that matches the ?ugly title? filter will have the title replaced by the first 48 characters of the post.

Blogger Title Fix

This plugin replaces the random title given to posts that were imported from Blogger with an excerpt.

espen

Based on a meta refresh tag on blogspot this plugin will redirect 
blogger permalinks to the correct wordpress post. Requires Blogger 
Redirector by Sam Wong 
(https://wordpress.org/extend/plugins/blogger-redirector/).
Why this in addition to the Blogger Redirector plugin?
Because Blogger changed the redirect for a custom domain and no longer 
returns a proper 301-redirect. Thus the only way now to redirect both 
visitors and search engines crawlers is to use a META refresh in 
blogspot.

Blogger Blogspot To WordPress Redirection

migration, pagerank, redirector
Requires at least: 2.0
Tested up to: 2.7
Stable tag: 1.0.1

Redirect permalinks from your old Blogger Blogspot to your …

Blogger Title Fix vs Blogger Blogspot To WordPress Redirection