I just tore down my 455 to a shortblock, finally got the cam out. I am trying to find if this is a stock cam, or aftermarket. I cant seem to find anything on it with the numbers that were stamped into it.

From top to bottom:
cr804542
030120
80 34-02

Also, havent looked it up yet but the balancer had 21 1850-2 engraved on it.

 

Ive determined that the balancer is an OEM balancer, still cant find any info on the cam.

 

If it's a factory cam, you will likely find a casting number with digits individually cast in the rough areas between lobes. You will also likely find one to three paint stripes between lobes. You'll have to clean it and use a bright light to see the stripes. If you can find this stuff, I might be able to help you identify the cam. If you can't find this stuff, it's probably an aftermarket cam. Search common cam vendors websites for the numbers you found. I'd start with Crane, since the one number you listed starts with "CR".

 

This may be it:


http://www.summitracing.com/parts/CRN-804542/