Rebuild 915 heads or go aluminum?

Here is some thing to chew on................. From "Car Craft" July 2012

A 400 cube Mopar "B" by Brian Haflinger of IMM.

Started with a pair of E-Bay 906 heads that were complete for $125.00, milled the heads for $120.00, 3 angle valve job for $160. They kept the stock 2.07 intake and 1.74 exhaust valves.

My math says they spent $405.00 complete on the heads..........a long cry from $900.00 to $1500.00. The little "B" churned out 426hp on the pump, nothing there to be ashamed of.

915's are, as an iron head desirable, close chamber, descent ports, they can make power. If you wish more performance, up size the valves, you will/should be still much less than aluminum, unless your machinist looks upon you as the major contributor to his retirement account. As already stated, most aluminum heads bought need some kind of help out of the box; up grading is not "just a few dollars more".

What ever you do, good luck!!