Ok Guys a little bit of help here would be appreciated.

I received a number of core's from my rebuild customers, but I am not sure if there are any differences between some of these head casting numbers. The heads all seem to look alike and I was hoping somebody would know what the castings numbers mean.

Here's what I got

PM9-1
PM9-8
PM3-7
PM3-10
PM3-17

An ideas, I figure the last number is just a casting number but what about the PM3 & PM9

Thanks

Modified by Tom Blaney at 12:05 PM 1/21/2004


Modified by Tom Blaney at 8:49 AM 1/22/2004