Magnum Heads
Magnum heads are great, you just have to have:
the magnum specific intake
magnum head bolts
lifters with oil holes in the center of them
hollow 7.650" pushrods
magnum rocker arms
You will need to put the R/T springs on and also the Mopar retainers. If you plan on running a cam bigger than .500 lift with the 1.6:1 rockers you may have issues.
Also, i have to take the heads back off of my engine to grind the casting flash off for pushrod clearance.
They are worth it though!