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Connecting Rods

LS connecting rods are very similar and interchangeable. Most are made of powdered metal, while the LS7 and LS9 rods are forged titanium. Rods lengths are similar, too, at 6.098-inch for 5.3L, 5.7L, 6.0L and 6.2L engines. The 4.8L engine uses 6.275-inch rods and the LS7 uses 6.067-inch rods. Since 2006, LS rods use bushed small ends. Also, LS6 rods bolts, P/N 11600158, offer a strength-enhancing upgrade to pre-2000 engines. Finally, because of the pistons’ inner bracing, non-LS7 rods will not work with LS7 pistons; and the LS7 rods have a slightly different size than other LS rods, requiring a unique bearing, P/N 89017573.