Alright I was looking at my friends 5.5 million series motor today when I noticed his head is stamped with a PR3-4 on the right side of the head, So then I looked at my 5.5 million series motor also and my head was stamped PR3-3 in the same place, so I want to know what difference is. I pretty sure both of our motor's are 2nd gen JDM B16's, but I would LIKE to know the difference. thanks in advanded.

 

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no one can anwser this question?

 

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come on peeps ^^^^^^^

 

bump. my head is stamped pr3-4. it is a jdm b16.

would like to know the difference

 

pr3-4 is itr head and i dont know about the pr3-3 head is prob ctr!