318 Head Opinions
Look in Mopar Collectors Guide:
Magnum heads - AS CAST LA Intake pattern 60CC Chambers 235 at .500 out of the box $439.00 just add valves and springs.
You can't successfully redrill a Magnum head to LA Pattern, 90% of all Factory Magnum head cores are cracked.
http://www.4secondsflat.com/FBo_EQ Cylinder heads.htm
Just buy the new castings