LS newbie question, I put my engine together this weekend and im alittle anxious about the bottom end. I reused the rod bolts and main bolts (i know ARP blah blah blah but this is going in my 68 C10 which will be used as a truck thats never going to tach up past 5k). I am uneasy about the twist to angle measurement, bought he proper tool but im not confident about the angle.

how much variation is allowed? 5 degrees + or -?

Can I loosen the bolts and re tighten without taking it all apart?

All my clearances are well within specs and i dont want to mess with that. Will i have to reset the Thrust bearing if i loosen the main caps?

thanks
Daniel