Thanks for all the help. It turns out that the prefix letter (P=1960) was mostly obscured by the valley cover. Bruce Naimy _____ From: XRAMKROOZER@xxxxxx [mailto:XRAMKROOZER@xxxxxx] Sent: Tuesday, December 27, 2005 5:35 PM To: brucenaimy@xxxxxxxxxxx; chrysler300@xxxxxxxxxxxxxxx Subject: Re: [Chrysler300] 413 Engine HI BRUCE & GROUP, THERE IS A PREFIX BEFORE THE 41, THAT WILL TELL US WHAT YEAR IT IS. THE 41 IS THE 413 DESIGNATION. P, WOULD BE '60, R, WOULD BE '61, S, WOULD BE '62, T= '63, V= '64, A='65. THE 10 21, IS THE DAY & MONTH OF PRODUCTION. THE MALTESE CROSS IS .001" BEARINGS UNDERSIZE. THAT MOTOR WOULD, MOST LIKELY, NOT BE FROM A LETTER CAR, SINCE THEY GOT THE BEST OF THE BLOCKS, i.e. NO UNDERSIZE CRANK, OVERSIZE LIFTERS, OR OVERBORE. I HAVE CODE BOOKS FOR MOST CARS. ANY OTHER QUESTIONS, I'LL BE GLAD TO HELP. STEVE ESTOK, P.G., FL I have a 413 engine, which I removed from a donor car when restoring a 300E many years ago, with casting number: 2120529-4 on the right side. The intake manifold has casting # 1851898 and is a single four barrel. The machined boss near the distributor has a 41 and at 90 degrees from those numbers it has 1021 and a Maltese cross stamped into it. Can anybody tell me what all this means? It hasn't run in all the time I've owned it but it turns free. What would be a fair price for it as is? [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> 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/