If it is the classic stack of firewire drivers that are required, and there is nothing else needed from the centosplus kernel, a good solution is to get the kABI-tracking firewire modules from ELRepo:
http://elrepo.org/tiki/tiki-index.php?page=kmod-ieee1394
It provides:
dv1394.ko eth1394.ko ieee1394.ko ohci1394.ko pcilynx.ko raw1394.ko sbp2.ko video1394.ko
Because they survive kernel updates transparently and you can run the distro kernel, there will be no "waiting" for each kernel update.
That is indeed what I need, I use ieee1394, raw1394 and sbp2 to access my 2tb firewire external drive that is used for backup rotation.
I will try that on monday.