r 3 combo help

can i get some info on this r3 block p4532907,will my indy cnc 245 ,go on r3 48 degree block with machining more room on the pushrod slots ,can i turn down my scat 4340 360 jernal size to run in it what cubes piston/rods would be best with this combo i will tit it with 200-300 of gas are they easy to covert to wet oil system thanks

Do you have theses parts already?I would sell the 360 journal crank and buy the 318-340 journal you will be farther ahead.