Discussion Starter · #1 ·
OK, I was liking the info on the old board about the differences in intake tracts on the Y8 and Z6. My question is: which one does the Y7 take after? All I know is it has the same size combustion chamber as teh Z6, but does it have the symmetrical intake ports like the Z6 or is it modeled after the Y8 head? Although as the old posts mentioned, on lower hp applications the difference may not be apparent. I'm just doing an all-motor 11:1 c/r Y7 buildup...