Looking for X Head Picture

MOPAROFFICIAL said
I've measured many heads and I have found them to be anywhere from 155cc to 160cc as cast.

170/175 cc is a fairly ported 260's cfm with good low lift in the 190's at .300.
There are variables.

Full is closer to 190 but usually around 185cc

My X head is 165cc and the 587 with a 1.88 tulip is 157cc. Change the tulip to a nail head and it's 159cc.

Largest I have done on a 587 is 197cc without hitting water.