I'm not positive about 63's but later B blocks don't have an ID pad under the A/C compressor, RB's do. If it's a 383, the ID would be below the distributor and it wouldn't have the pad. I would suggest a 413 would have the pad like later RB's (440). You should be able to see in there well enough to determine if the pad is cast in the block or not..... Ryan Hill To: chrysler300@xxxxxxxxxxxxxxx From: JettLarry@xxxxxxx Date: Tue, 26 Oct 2010 14:35:19 -0400 Subject: [Chrysler300] 1963 300 J wannabe Just bought a rust free CA blackplate barn find. It has every option including leather. Seller tells me it is a 413. The AC compressor hides the engine serial number. Is there any visible proof of the cid of these RB engines other than the engine number? This car is a survivor and just makes me shiver with excitement should if really be a 413. The pragmatist in me suggests it can't be but a 383, but maybe? It will be at LSMFT....will you? [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ 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 http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button 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#querylangYahoo! 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: http://docs.yahoo.com/info/terms/