Are all LS connecting rods the same?
All share the same rod/journal size. You can take a 5.3 bore it to an Stock LS1 bore and use 5.3 rods + Ls1 Pistons and have an Iron Block ls1. 5.3 and 6.0 cranks are interchangeable.
What is a good bore-to-stroke ratio?
between 1.1 and 1.2 to one
Typical bore-to-stroke ratios are between 1.1 and 1.2 to one in high-performance production engines, and may be greater than two to one in high-end racing applications such as Indycar and Formula One [2]. The second two considerations gain in importance when fuel efficiency is paramount.
What are the different lengths of LS connecting rods?
GM manufactured LS connecting rods in three different lengths. Rod length is measured from the center of the big-end bore to the center of the smallend bore. 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. Of these, most feature press-fit piston wrist pins.
How big is a 6.098 inch connecting rod?
He began by giving us an education the common center-to-center rod dimensions for small-block Chevy engines, both vintage and modern. “For the 6.098-inch and 6.125-inch rods, I will clarify how they came into existence,” he begins. “The 6.098-inch rod is the factory length for the 5.3L through 6.2L LS and Gen V LT engines.
How big are the rods on a 5.3L small block?
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. Of these, most feature press-fit piston wrist pins. The exceptions are the rods used in 6.0L Vortec truck motors, which have floating pins and a slightly thicker beam.
How is the length of a connecting rod measured?
Connecting rod length is measured between the centers of the big end (journal end) and the little end (piston pin end). Below is a table with stock connecting rod lengths for various engine families.
