B18 Vs. B16 ???
I would expect you to have already known this from years ago. It's a fact that the B16/B18C5 ports are larger than the B18c1. This has been around since the late 90's. I have no idea who initially did the test but yes it was proven that the B16A head Flows 10% more air (cfm?) over the B18c1. And I do remember seeing some kind of proof back in the day. Look it up I'm sure you can pull the data sheets off the honda-tech archives. I don't really care enough to do the homework.

https://www.vadriven.com/forums/show...light=b16+head
Last edited by Newbsauce; Jul 25, 2008 at 07:47 AM.
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