www.moparts.org/Tech/Archive/ <http://www.moparts.org/Tech/Archive/motor/36.html> motor/36.html will provide you most of the info you are looking for. Production of the RB engines ceased in 1978 (I believe). 413's were made up to the end for truck/motorhome/industrial use. The first two digits of the displacement were used up to 1965 when three digits were used. So 41 suggests a pre '65 413. But it should have a letter before the 41(3) to denote year (see webpage linked above). See also the block casting number to narrow down year range. The "E" after the number may refer to a cast crankshaft. Blocks should be the same internally. Heads used vary. Here are some sample numbers for later production 413's. 2899 913 60-71 413 Truck 2899 943 71-77 361 Truck / 413 Once you narrow down year/application you can look up spec's such as horsepower, cr, etc. From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of christopher thelastbestgenius@xxxxxxxxxxx [Chrysler300] Sent: Monday, March 02, 2015 7:09 AM To: Subject: [Chrysler300] 413 motor I/d help Chrysler 300F and Gs used 413s - very briefly, and maybe just offlist replies back to me - how similar were 413s used in motorhomes - re good/same heads etc? - and until what year were 413s built/used in say motorhomes? Were the motorhome ones a much lower power/specs?! The motor I am looking at apparently has prefixe "E'" stamped after "41" stamping on pad atop block, and has an alloy case auto trans bolted up, but trans still has handbrake on rear - alloy case is all one piece like later 727 torqueflights. I am looking at putting it in my '59 Dodge 2 dr - sump I need to do that has deep rear, whereas the 413 has the deep part of sump pan at front where it will foul the xmember - do the 300F/G have deep rear or deep front sumps? Christopher in Australia [Non-text portions of this message have been removed] ------------------------------------ Posted by: "Rick Vitek" <rpvitek@xxxxxxxxxxxxx> ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/