I wonder if anyone has a way to tell the AP1 cams from the AP2 cams either visually or my measurements? I just need to validate what I have on hand before I sell off my collection of parts. I am pretty sure I know what is what from how I stored them, I just am looking how to validate it.

Thanks

 

Idk... but the B-series cams back in the day had different # of rings on the end to tell diff (jdm b16, usdm b16, type-r, gsr, etc). Perhaps same for F-series?