Quote:

Moparts performance aluminum heads,



I sold Darren the heads that I had bought off another moparts member a number of years ago.

The heads are the MP 383/440 replacement heads, think a stage 6 but with a stock port location, not raised like a stage 6 so on a 440 it takes a 440 intake without a spacer.

The heads flow 290ish at .600, I don't know if the ports cross section will support 600hp ...

Well I guess it depends on how HAPPY the dyno throwing out a 600HP number is ...