Possible? Yes. Likely? That's somewhat less clear.
Did it include the build environment also, or just the raw source? Does the source match up with your chipset VERY closely (if not, do you have long road ahead)?
When compiling a Jasper Forest BIOS for example, there is:
1. Source for the Jasper Forest family of CPUs (which is different than the source for all other familes)
2. Source for any BIOS-supported ICs on the system which differ from Intel's reference design (perhaps you have a different super I/O, for example?)
3. A configurator which sets a ton of build options #define's. It has an integrated compiler as well
4. An Intel BIOS packaging tool which adds a few Intel proprietary things
The only one that I would guarantee to be universal is is #1: Different BIOS source for the different families of CPU's.