318 heads on a 360?

Don't 318's have "shorty" intake ports compared to 340/360 heads? Measure 'em.....I believe some of the mid to late 80's 318's started coming with 360 style heads, but have those giant 76cc chambers. I never understood how people went crazy over those "302" casting heads, and put them on 360's.......because they also have the shorty style intake port. I can't believe running those short ports don't hurt performance. I know about the "302" castings' small combustion chamber size and the fact that it's swirl-port.