Yes I read all the time about "TYPE R head is cast from B16 head, so B16 head must be better"

The different combustion chamber shapes....blah blah blah.

Anyone have any actual CFM ratings of the different B series heads?

Perhaps B16a1, a2, a3, B16B (any different in port designs over the years?) I remember reading about better coolant passages and such..... B18C, C5 ect...

Just curious for my own info.

PS: PLEASE no "this head flows better" info. I have heard all this. I want hardcore tech info that was derived from an actual flow bench at different lifts. Is this info out there anywhere?

Thanks.....

 

ttt, come on, noone has any HARD evidence here?

 

I remember seeing a list in a topic a long time time ago where it had all teh heads and what they flowed. I cant seem to find it, and ive looked before. Hopefully some has it somwhere, or knows.

 

ttt one more time.......