I just recently purchased a GSR head. I was told it had ITR cams. I took the cams out and was wondering how to identify them as real ITR cams. The cams' sprockets say PR3. I haven't taken the sprockets off the cams yet, but is the same PR3 stamped on the cams? I did a search and it said something about measuring the lobes...how do I do that and what measurements am I looking for? Thanks for the help.

 

use google to find the picture of the ring grooves. most of us can ID a real ITR cam on sight. some good close up pics do exist on the web.

 

two minutes of searching would have lead you to this:



from here: https://honda-tech.com/forums/acura-integra-type-r-8/how-identify-itr-camshafts-1220152/