I'm glad I read this post, because I've been under the impression for a long time now that the lift on a PI cam was the same as an NPI cam. I thought I remembered being told that it was just the duration that was different. BUT I just did some searching and learned otherwise. From a post over on the TCCoA forum:
PI Cams: .510"in / .530"ex / 201 dur. in / 210 dur. ex 113.5 lsa
NPI Cams: .471"in / .471"ex / 190 dur. 113.5 lsa
So many people have done this swap man, I think you can rest assured that the cams will be a direct swap without modifcation required.
I've had my PI intake and cams sitting in my closet waiting to be installed for like 3/4's of the time I've owned my car! lol I can't wait to get the stuff installed, but I'm not confident enough to do it on my own. A fellow member from another forum has offered to have me go to his place and he'll do the swap for me (with my assistance, of course) free of charge, so that's absolutely awesome. Just gotta wait 'till our schedules allow us to get together for a day and get 'er done.
Might be a little while, so I'm CONSIDERING doing the intake on my own because mine's cracked and leaking a bit of coolant. Kinda scared to do it since there's so much shit attached to it though. lol We'll see. (brings me to a question...if it's cracked and slowly leaking coolant, does that mean it's likely leaking air as well and affecting performance?)