Question on opening ports to Max Wedge!

Having flowed and ported both the STG VI and the STG VI MaxWedge, I don't recommend taking the STG VI out to MaxWedge size. You will end up into the pushrod hole if you attempt to go that wide. You can bellmouth the port entrance to MaxWedge and curve it around the pushrod hole. The Stage VI is a strange animal, you can whack a lot of aluminum outta there and gain nothing for the time spent.

Most of the ported STG VI heads we see come in here max out at around 290-295 cfm @ .700" lift. If we get a head that hasn't been demolished by someone else we have gotten,

Lift...........STG VI OOTB.......Ported STG VI

.100.............66cfm...................75cfm
.200............124......................149
.300............175......................215
.400............206......................267
.500............226......................311
.550.......................................335
.600............236......................341
.650.......................................343
.700............240......................346

This is a port that is neither standard port or MaxWedge width or height, but in between.