Slant 6 Aluminum Performance Head

More modern output references;
3.5L Honda Odyssey/Pilot/Ridgeline 280hp
Pentastar 3.6L in RAM form 305hp
Hyundai Genesis 3.8L '09-'15 306hp, newer GDI's are 348hp
GM 3.6L '16 & ^ 335hp
These all represent basically all-out slant configuration outputs as it stands today, but they do it on pump regular, will(barring defect or abuse)likely run 150-200K,..pass modern IM standards....on & on..........
which is why simply making an Al-u-minimum replacement of the current head....even a well ported-improved one, isn't going to catch fire.
Sure, You will sell some, but.........................