i need the bolt torque specs on the rod and mains on a 92 chevy 350 truck engine.4 bolt main.(cant find my book)

 

Depends on the bolts you're using.
Factory spec is something like 40ftlbs on the rods, and 65ftlbs on the mains.

 

It is the stock bolts

 

45 for the rods
75 for the inner mains
65 for the outer mains

 

Apeiron's specs are right on the money.

 

Just remember to use the proper lube on the fasteners before torqueing them down. Without the proper lube on them the torque readings will not provide the proper stretch on the bots (the TRUE desired end result of a proper torque setting).

Usually it's engine oil for parts like mains and rod bolts (at least factory ones).

The few times I've double-checked using a stretch gague on the rod bolts I've found they want more than 40 ft/lbs to achieve the desired amount of stretch (even with proper lubrication). That's why mine usually end up closer to 50-55. But I use ARP rod bolts in almost everything I build, which are NOT the same as stock bolts.