The only way you will see that is on a fully built turbo motor. MAYBE get it from a vortec SC, but i dont see a jrsc making that.
You can make it on any b-series and and h-series. Maybe more.
Look at around 8-10k all said and done. But it really depends on what price you pay for parts.
you deffinitly need resleeved block (around 1000-1300 bucks), aftermarket rods, pistons, etc.
Jeffie7 here is making around 250hp 174tq to the wheels in a pretty extensively modded b16/turbo setup.
Unless you have a lot of downtime to slowly build, or deep pockets. Shouldn't shoot for 300whp..
fyi, tq moves a car, not hp and jeff's 174 will break the tires loose at will (or so i'm told