Brainstorming Ideas for 400-450 hp 360 Build

Wyrmrider said

Magnum blocks as said are inexpensive and tend to have less wear
mostly due to EFI and no fuel wash but also machined to tighter tolerances
450 can be made with solid, hyd, or HR
Late 360 or Magnum base gives you a choice
rumble is saying what I said about Iron heads
DYI or buy new aftermarket
Pick a modern combustion chamber
no X or J or other 60's design
Closed chamber is easier to get quench- no special pistons required as with old open chamber heads

Click to expand...

He can ,if he wants..
...but a closed chamber is NOT going to make or break the goal...and an open chamber will shroud the valve way less than a closed chamber and that means the open chamber will flow more with the same work done. Jim Leroy tested a lot of things in his time and i tested what i could that he told me.. and he is right. His ported 906 head is a testiment to this.
speaking of chamber shape by itself with identical port shape... obviously if the ports were w2 and the chambers were closed...no standard rocker head ' sans trickflow' would come close.