there is two..version..well now actually 3
there is a small 177cc intake runner version
with rocker stands cast in place.
its got killer comb. chambers and with porting can be an ecellent head...more expesive than an assembled eddie though.
then next is the larg port commando...its 188cc intake runner..and has larger bowls. the rocker stand mounts are machined off..so it will need the blocks to set up the rocker system.but will accept long valve combos better
i understand these heads are discontinued so ..the part number now refers to an iron casting...
i dont know if the iron is large or small runner though..
fwiw..
the large port heads can be ported to flow 320cfm..fwiw..
ive seen the small port version..go 290cfm..fwiw

cheapst