John and Club members, If you want to answer you own questions and learn much more about the application resonance frequency to pack piston cylinders read the article written by Al Kirschenbaum published in the September 1999 issue of Mopar Muscle magazine. 300'ly, Jim Bartuska Niles, Mich In a message dated 3/23/2009 7:22:00 A.M. Eastern Daylight Time, john_nowosacki@xxxxxxxxxxx writes: Does anyone have the casting numbers for the 'short' long rams? Were they different for 62/63/64 cars? I think they were used in 62 on the 405 HP optioned cars, but in 63 and 64 on the J and K they were rated at 390HP? Are all three the same? Why 15 more HP in 62? Were they only made for use with the large headers, or could they be used with the 'standard' ram exhaust manifolds? What would happen if a set were put on a G without changing carbs, cam, headers, etc. Thanks, John [Non-text portions of this message have been removed] **************Feeling the pinch at the grocery store? Make dinner for $10 or less. (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001) [Non-text portions of this message have been removed] ------------------------------------ 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 For archives go to http://www.forwardlook.net/300-archive/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: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto: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/