Slant 6 Aluminum Performance Head

Killer6 said

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.........................

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There are reasons why folks choose to build, race and generally enjoy working with older technology. Certainly anyone that has a goal to absolutely maximize efficiency, they should embrace the most modern equipment for each of the engines systems. There are nitches where people choose to maximize some engine operating systems but leave other engine characteristics intact and have much fun with it. The Slant Six . Org drag race series is one such example. That approach may not appeal to everyone and there are folks that just won’t get it, but there are folks that do get it. I do and I enjoy it.
No doubt some in the Slant Six Drag series could put a modern six in their car and go quicker. But the ‘fun’ would not be the same.