5.9 magnum?

engine has been sitting a while. is it hard to check cranks and rod bearings without taking the heads off? the engine is on a stand right now. i bought it assembled but dont know cam specs or anything. i was going to replace the oil pump for cheap insurance. it came with edelbrock rpm intake, carter fuel pump, edelbrock water pump, tti ceramic headers, clutch fan.

any guidance would help. i would hate to pull it back out because the bearings were shot.
its going in my 70 dart swinger w 904 reverse manual auto but 7 1/4 rear:sad9:



tom