im building a 5sfe block with a 3sgte head .... but i'm using 5s crank with 3s rods ( crank have machine work to fit the 3s rods ) and wiseco 8:8.1 comp but is not machine balance yet,

question is ???????

what can it happen if i put the all motor together WITHOUT get it professionally valance ??

question #2 ??????

if it's out balance what can it happen ????


i been making calls to all the machine shops i know and they never give me an answer ???

thank's TR