I see the magnum block is not drilled for the oil ports that feed the rocker rails on the LA sytle heads. Therefor I am assuming that w/ a magnum block you must run mag style heads?
I would never use LA heads on a magnum block, Why?? Because the magnum heads in stock form flow beeter, have better chambers, & nothing to dropping them on, Plus there are magnum heads out like the EQs & RHSs for less then a Grand ready too run & flow VG #s OOTB.
