is there a sight we can go to that will decode engine codes?

[41husk]

I have a 440 coded 38988304405 ?  I think!

[RT DAVE]

casting numbers here.  Not a decoder, you might have to work on it a bit...

http://www.mymopar.com/tools.htm

[John_Kunkel]

3898830 is the basic casting number for a '73-'78 440 block; the flat pad in front of the intake manifold will have stamped data that will tell you more info and the VIN stamped on the passenger side just above the pan will show the origin of the car the block was in.

[41husk]

Thanks guys, that is very good news.  That means the 73 U code ralle I bought may be matching #s as advertised, I will look for the pad above the pan.  Thanks again