Cylinder Head Porting and Power Production
I know that a head flowing 240 cfm @ .400" is probably going to work very very well for most purposes. I also know that a head flowing 230 cfm @ .400" is also going to work very very well also. What I'm trying to say is the flow rate really doesn't tell even half the story as far as I can tell. This is why the jury is still out on certain heads until they gain a reputation for just "working" . I have the EQ Magnum and Chevy Vortec in mind here--these heads --never mind the dyno results--just flat out work. So defining what "works" means is problematic as well. This is one reason why these types of discussions get convoluted so quickly and easily. J.Rob
interesting post, and very nice to hear.
My new motor is a 416( 418 actually) a local guy had spent a little time “ improving” my stock eddie heads. Had a 10 to 1 360 they were on
Now i have this motor built by a pro, first thing he tells me is the short turns are messed up they go turbulent because the air doesnt want to follow around nicely.
He “fixed” them as best he could( he is pretty handy) thought putting a 2.05 intake would make a few more horsepower, and got them to go low 270’s at 550 lift. My cam is 565 gross lift.
I was kinda dissapointed in the “ low 270’s” peak number.
He said the heads are really going to surprise me, and the 300 and 400 numbers were quite stout.
Said they will work very nicely. Don't know if he is just trying to make ne feel better that the heads didnt flow more, or is really happy that they will make good power... pretty sure its the latter.
It is 12.5 compression, so i am hoping the car will make nice gains. The heads and cam were on my 10 to 1 360. Heads of course the way they were before “ fixing” them
Still went almost 119@3300+ pounds before
