I think you’re right. There has to be that much potential. I have patterns that were made but they were not done right and can’t be used as is. I hope to have some guys look at them this spring and see what can be done.
With a 240 iron head, our cnc has a program to begin port work. It's a 3 axis so you gotta finish by hand. We built a 300 with this head after spending hours doing port work and it made 412 horse. It was a drag motor with aluminum rods and a big cam. About 13:1 compression. I've worked on the EFI heads with the slightly better chamber but only about a gasket match. Good valve job and some bowl work. Made just over 300. Roughly stock compression for the EFI. I know with an aluminum head with a good chamber and revised ports we could hit 400+ on pump gas and a streetable cam. Let alone what could be done with boost.
All Ways @ da busy !
I think you’re right. There has to be that much potential. I have patterns that were made but they were not done right and can’t be used as is. I hope to have some guys look at them this spring and see what can be done.
With a 240 iron head, our cnc has a program to begin port work. It's a 3 axis so you gotta finish by hand. We built a 300 with this head after spending hours doing port work and it made 412 horse. It was a drag motor with aluminum rods and a big cam. About 13:1 compression. I've worked on the EFI heads with the slightly better chamber but only about a gasket match. Good valve job and some bowl work. Made just over 300. Roughly stock compression for the EFI. I know with an aluminum head with a good chamber and revised ports we could hit 400+ on pump gas and a streetable cam. Let alone what could be done with boost.
ck site for details:
not sure progress...
Those are new cast iron castings with some improvement, right? And ported
its in the winds nt:
https://fordsix.com/threads/promaxx-cnc-ported-big-valve-heads-are-now-available.81945/page-25#post-656723
I would like to, but have to wait until the small 6 head is in full production