Ls Connecting Rod Torque

Replacing the old tried and true small block chevy engine with a new version would not be an easy task.

Ls connecting rod torque.

If using aftermarket rods or bolts follow the tightening procedure specified by the manufacturer and read utilizing fastener stretch below for more information. Connecting rod bolts second design first pass 15 lb ft. Connecting rod bolts first pass 20y 15lbft connecting rod bolts final pass 85degrees coolant air bleed pipe and cover bolts 12y 106lbin coolant temperature sensor 20y 15lbft crankshaft balancer bolt installation pass to ensure the balancer is completely installed 330y 240lbft crankshaft balancer bolt first pass install a new. Connecting rod bolts second design final pass 75 degrees.

The procedures described in this step apply to engines using gm connecting rods and rod bolts only. For example most ls small blocks that have a 3 622 inch stroke use a 6 098 inch connecting rod and this equates to a rod to stroke ratio of 1 68 1. Connecting rod used in 2005 2007 ls2 and 2008 2012 ls3 engines has bronze bushing. I didn t sit well with me.

I made a mistake last time and said torque your mains to 45ft lbs and 55ft lbs respectively. Connecting rod bolts first pass 20 nm 15 lb ft connecting rod bolts final pass 85 degrees coolant temperature gauge sensor 20 nm 15 lb ft crankshaft balancer bolt installation pass to ensure the balancer is completely installed 330 nm 240 lb ft. When working on gen iii and gen iv vortec 4 8l 5 3l 5 7l 6 0l and6 2l v8 engines you should follow a new connecting rod bolt torquespecification. Tighten connecting rod bolts torque fasteners note.

If you lost the connecting rod instruction sheet below are the proper torque specs for our rod bolts. Connecting rod bolts first design first pass 15 lb ft. The new small block is known as the ls engine family and has more than successfully replaced 350 s and 305 s that were based in design from the 1950 s. From a mathematical standpoint a couple thousandths of an inch of rod length doesn t impact the ratio much at all.