You are correct, mostly. SOME early magnum blocks had the previsions for oiling LA style heads. I was lucky enough to find one as I wanted shaft mounted rocker arms. I also got a custom camshaft from Comp Cams that did not have the fuel pump eccentric on the snout but had the oiling holes drilled through the journals (LA heads get oiled from the main, through cam, up the block/head into the rocker mount). Already have been running and confirmed rockers are oiling correctly.
