Does anyone know the part number for the LT1 water pump o rings, opti spark o rings, and ac system o rings that would need to be replaced when pulling off the lines to take out the condensor. Also how do I know if I need to change these o rings when doing a cam swap?

 

Look on my part numbers page. I don't have any a/c o-rings on there, though. I would plan on replacing all of them, but the a/c ones may not need it. I just moved the a/c out of the way and did not have to open the lines.

 

even if you do open the ac lines, you shouldn't need to replace the o-rings unless you rip one of them. I have had my lines off numerous times but never replaced them and I don't have any leaks