And also the OP specifically was asking about "big power" capable heads for his 418" LA short block of OE origin and was told repeatedly to not even attempt to use some of the top tier heads due to fitment/making it work compatibility i.e. lifter angle and yes to my understanding there are some 59 degree W9's but still you would be wise to use them on a 59 degree race block and also the FACT of what a stock block should be used for and not used for and to be honest I think he is out in lala land as he for some reason wants to put 1000hp capable heads on his short block and we all know how that would end in short order but then of course we get the trolls and they had to come in and muddy the waters with their irrelevant nonsense.