i have a stock block l98 with 4 bold splayed milodon caps

stock l 98 heads with better springs , roller camshaft, roller lifters and a comp 300/308 114 camshaft

eagle l19 rotating etc

i will get a 101mm precision

i can get about 900/1000hp with that combo?

i read in some foruns this head is a piece of crap

flows only 175/185cfm

because that i unser this questions

how much psi if is possible i need to make this power with this head

and a block safe barrier

 

i'd run a aftermarket block with that power level. that turbo is huge

 

Very few production parts will survive at those power levels.

Head flow doesn't mean as much with a turbo. The piston isn't drawing the air into the cylinder through the port as a vacuum. The turbo is ramming the air into the cylinder under pressure as the piston is moving down into the cylinder. Bigger ports always help because they will reduce velocity.

Easiest and best way to do it? Buy a prebuilt engine.