gokussx4

iTrader: (3)

I am in the reassembly stages of my ls1 rebuild. From what I have gathered in the past the crank should be more heavy to turn as more pistons are put in. Right now with pistons 1 and 2 in the block I can turn the Crank over with less than 15 ft/lbs of torque. It seems to be ok but does anyone know of any specific torque specs for this procedure?

Thanks!

TheCarKid

With all the pistons in it shouldn't be much harder to turn. With using assembly lube on the main and rod bearings it should turn over pretty easily. I've heard of a "turning torque" spec like this for bearing preload on differentials but never for engine crankshafts.

Ferocity02

iTrader: (60)

Yes, as more pistons go in it will get harder and harder to turn, naturally. I think my assembled shortblock turned over at 16 ft-lbs, bearing clearances between .0015 and .0020.

streetlegalls1

iTrader: (15)

my assembled short block also rolled over at 16lbs torque,would'nt crack 17 on the wrench.