Originally Posted By BradH
Originally Posted By Smell Ya Later
... why does a cnc have to be one size fits all? Why are cnc porters only using one specific port program on one particular head?

It doesn't, and in some cases you'll find people who will offer different programs for the same casting, or different castings w/ application-specific programs to offer some options.

But those guys are working w/ either highly specialized racing applications and raw castings intended for custom porting... or deal in a part of the performance industry where there are far more people to offer a variety of heads to (SBC & SBF).
I am aware of this. But cnc porting in this thread is being addressed as a one size fits all non-custom option. And it doesnt have to be that way. 1. Custom hand port one port for specific application with flow characteristics you want 2.digitize 3. then put them in the heads with the machine. It doesnt mean you have to reuse that program for every head of that make and model