Does anyone know the part number for a L59 Flex fuel 5.3 PCV valve in a 2006 Sierra?

I cant seem to find any PCV valve listed for a L59 5.3. I spotted the location of the PCV, It seems to be installed (I havent taken it out) So, some PCV valve has to take its spot. ;)

If anyone knows the AC delco Part # please Let me know. Thank you. :new:

I think the napa part# is a crb 29485. My truck isn't flex fuel, but there isn't much to the pcv valve on it. It doesn't have a spring or check ball or anything. I just used some carb cleaner to clean it out and put it back in.

The PCV has a really small orfice in it right? Ive been too busy and away from the truck to check. Maybe tommorow ill give it a look.