I stumbled onto an (somewhat) ongoing discussion on the SN95 forum (shame on me...). The person is working on measuring the specs for various PI (4.6L & 5.4L) and NPI 2V cams. The condensed version and the link to the discussion will be below. I can't speak for everyone but I know that I had heard from great sources that all the PI cams are the same specs. Not looking to start a fight Just figured it would be worth sharing. Also in there is bit of discussion about using PI style lash adjusters (slower bleed down) on the intake side of NPI heads. Haven't heard of anyone trying that.
Ill be issuing stock 2v cam specs here, so stay tuned! To add, .....npi cam specs compared to pi specs is rather surprising. Ill also be describing how...