usps is $$$$$$$$$$$$ pit...GOD forbid anything go thru the hazelwood distribution center many of my packages have been missent or ended up in PARTS UNKNOWN. usps is a private service corporation that needs put down.
Thats news to me..how are the later ones better ? I know the early 400B's have thicker main saddle n web castings ??? 440 source says the later 440RB's are better...I'm just going off the info they have tho.. :elmer:for info
Reason I ask is mine came from a 72 Charger n was a 2 bbl...turns out its "COLD WEATHER?" one of the best blocks 3614230 "cast before 10/71" Chrysler made ...according to these guys... 440 Source.com Everything you've ever wanted to know about blocks and more....