Ls Connecting Rod Direction

This brief article should help.

Ls connecting rod direction.

Within the internal engine forums part of the lsx technical help section category. The 6 125 inch rod was introduced because virtually every connecting rod manufacturer already made a 6 125 rod for the sbc so they had a simple foundation as the main journal sizes were identical. Do 6 0 connecting rods all face the same way. 08 21 10 07 51 am post 1964363 in response to big jacks auto many builder class pistons are designed to go in in either orientation and have both the valve notches and piston pin offset that are identical but most performance pistons have a dot or an f stamped on the crown indicating the side facing the front of the engine naturally the rod big end bevels face the crank counter weights.

Thats no problem but i just got my rods and pistons back from the machine shop and since i have domed pistons the pistons also need to be facing a certain direction. The chamfer radius on the rod is barely visable. I was told that the connecting rods need to face a certain direction that the lip on the rod cap had to be facing away from the rod next to it. The vast majority of gen iii iv small blocks including 5 3l 5 7l 6 0l and 6 2l car and truck motors utilize 6 098 inch rods.

I already know how the pistons are to be orientated. But the connecting rod. Connecting rods orientation of the two. Unless you are using a press fit piston pin in which case your machine shop will already have put together your piston rod assemblies for you now is the time to assemble your pistons to your connecting rods.

Components relative to each other and relative to the block can sometimes lead new builders to wonder about direction. What direction do the rods get installed to the pistons. Read piston and connecting rod orientation rules on page 113 before proceeding. Assemble pistons to connecting rods.

The end cap on the rod only goes on one way and wont work if its installed incorrectly. In this week s tech tip jay shows us how to line up the bearing tangs so that you don t make this easy mistake. Rod length is measured from the center of the big end bore to the center of the smallend bore. If the big end of the connecting rod features a larger chamfer on one side.

I have a new 6 0 block and a seperate set of new take outs 6 0 rods and pistons that came with. Connecting rod points toward the crankshaft. Long story short i bought an lq4 out of a 3 4 ton and am rebuilding it using lq9 rods and pistons to replace the motor in my ss. The 6 098 inch rod is the factory length for the 5 3l through 6 2l ls and gen v lt engines.

They have a front mark on them. Come discuss mods horsepower engine specs and more.