@Brooks James , There's a kid on YouTube I warned him about the factory magnum heads, he didn't wanna hear about them cracking, he put a bunch of time & money into something that was probably already junk. At my work there's probably 30+ pairs to be welded and 1 single good head lol, they are junk !
If you even think about putting 2k into factory magnum heads, you might as well by me a flight from Washington to Florida so I can dump all your chardonnay down the sink lol.
Get some aftermarket heads, aluminum heads, small block **** is heavy, heavier than big block cast iron heads.