The Grumpy Grease Monkey mechanical engineer.
it requires a new matched cam, intake, headers etc,
but it out flows even most BBC aftermarket heads
a 1000 hp NA and noticeably more with turbos or nitrous is doable
yeah, just the heads and related parts probably would cost in excess of $17K
but it potentially makes much better power than most other potential SBC combos,
so much in fact the block is potentially the weak link, even with aftermarket blocks.
looking over the cost vs power, its in serious BBC cost range,
and its not likely to produce similar torque as a,
significantly larger displacement engine may,
I do not expect these to be used by joe average at a cost of over $11K for a set,
and most likely adding about that amount of cash spent again,
or maybe $20K plus to build the engine with those heads,
still, its rather impressive and interesting