Does Diamond have a piston design that can be run with less p2w clearance ?
That I cant say... you would have to talk with them... they are close to me so it was nice to deal with them and when they had them done I just drove over there and picked them up... plus I know the owner and see him fairly regular at a car club thing.. if I can find another 340 block I'm gonna start another engine build for my Rampage.... but it might end up as a stroker 318... still unknown... but I'm running out of 340 blocks unless I start putting sleeves in them
P-guy ... do you have an email addy for your guy ....I could drop him a note later today and he could digest it at his convenience on Monday.
ANOTHER point on max-squish ... the less "open area" beyond the combustion chamber gives more swirl to the AF mixture THUS a better and more complete burn.
ONE of my projects that could definately use-this would be my 413 motorhome moder ...with those goofy heads. HUGE CC closed chambered head design ... 100 PLUS CC's ... so a +.010 deck piston with a slight dome with a fire-slot would be in order IMO .....
MPI (or the artist formerly known as Doc Fiberglass) are those 413 industrial heads a closed chamber or open? To cut the cc's down you could get them spray welded (I think Dr J's performance does this)