the engine will work but
if you're running type R rods, you lost stroke.... so you lose power... get some rods meant for an LS, eagle H beams or crower econo billets will do you just fine.
he wont make 260+ whp that much i can assure you but he will make some reasonable power. the engine will be plenty dependable if it is put together right, if not... you're in for a big bill