Larry: I'm no expert, but I recall the bell housings are different due to the differences in transmissions/fluid drives/torque converters. The bell housing is cast with the block on one or the other series (probably the long one you have found) and is a more typical bolt on with the later PowerFlite series. I would appreciate learning more about this from the experts. Merry Christmas to all, and to all a good night. C-300'ly, Rich Barber Brentwood, CA 1955 C-300 JettLarry @ aol . com wrote: Brighter then me......are there two 331 engines, one longer than the other? A transmission shop that has been very helpful to my 300 fleet wants a 331 hemi for a streetrod project and I found him a 1951 180 horse version but he claims it is the longer version and he needs a shorter one. This is news to me, was there really two different dimensioned versions? Also, anyone have a source for rear quarter glass for the 67 B bodied two door hardtops? ------------------------ 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/