Re: 1956 Clipper Hot Rod

Posted by Eric Boyle On 2009/10/27 16:31:18

Al, first off, see your pm.

Second, yes, the 10/18/55 is the casting date. The "440871" is the casting part #, they're all different for the 320/352/374 engines. One of these days, if people would give me enough info when they have their engines out, I'd like to do what Dave (OwenDyneto) is doing and build a database of Packard engine casting numbers, since there isn't one. Your # should be for a 374.

The "CL" intertwined is a foundry mark, I believe. I've seen that mark on all kinds of different engines, from Hudson to Chrysler to Packard. I always refer to it as the "centerline" mark, as that's how I write "centerline" when I get in the mood to do some blueprint drawings. (another hobby of mine)