Hello,
I see a lot of "P72"s stamped on my GSR engine.
But in the cams, it says PR3. Can somebody please tell me why this is so.
Are the codes for cams different? If so, what are the other codes and what does it mean?

Thanks!

 

i believe that pr3 is for the 1st gen b16. did you buy it from some guy or an engine distributor?

 

The cams on my gen1 b16 are pr3. hopefully they didnt swap out your cams for a lesser version.

 

Bought it from IAS.
Curious why its a PR3 though.

Should the cams be stamped p72?

 

Is PR3 stamped on the camgears? If so, that is normal