As for the particular heads in question at the beginning of this thread....... if the budget is the primary concern......Jegs is selling the assembled version of this head for under $1000.

If someone were looking to truely keep the costs down, you could buy those, only correct any issues you may find, and after the spring rates have been verified....... select a cam that would be suitable for use with them........ and off you go.

I’m sure you would still be able to build a 550hp+ 493/505 without any trouble.

Like with anything......... it just depends on what your needs are, and just making sure you’re buying parts that are suitable for your goals.