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Old 01-12-2009, 08:42 AM   #3
Security guy
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Join Date: Mar 2008
Location: Sarasota, Fl.
Posts: 441
Re: Going to get it next week!!

Looks like a good deal. The 400's have either one more or one less freeze plug than the other small blocks on the side of the block I believe. Others on here may know more, but thats one easy way to tell a 400. Enjoy the project!
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