Heads for magnum

I thought I remember seeing somewhere that you could run a LA style head on a magnum you just had to do oiling mods But can’t find it

Ddill the back of the heads to accept an split oil feed line from where the oil pressure send is located to intersect where you drill downwards from the rear rocker shaft pedestal. The attaching bolt for the rocker arm shaft is then drilled to allow oil up to the shaft. Drill the bolt high enough to allow a 90* drilled path to inside the rocker shaft.

Oil mod NOT done by me.
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