What is the torque sequence on a big block Chevy crankshaft?

Answer 1

I have never seen any diagram suggesting such. However, I would advise that you start in the middle, and work your way outward in a circular type motion. And, I would break down the toque, in half, then go back, tightening to full torque, second round. In other words, two incriments. After each main cap, turn the crankshaft to make sure it is turning freely. This way you will know which cap is a problem, if there is one. Remember to use assembly lube on the main bearings, only the surfaces that touch the crank journals. Always platigage, at least a few bearings, to make sure the crank frinder wasn't off. And remember to use covers for your rod bolts, when installing the pistons. Nothing marks a crank journal, like case hardened rod bolt threads.