Eagle 137753898 LS Engine Rotating Assembly 3.898" Bore 3.800" Stroke

The Eagle 137753898 is a complete rotating assembly designed for LS1 and LS6 engines with a 3.898-inch bore. This professional-grade kit provides all the essential internal components needed to build a high-performance LS engine.

Key Components Included:

• Forged 4340 steel crankshaft with 3.800-inch stroke and 24-tooth reluctor wheel
• 6.125-inch forged 4340 steel I-beam connecting rods with 7/16-inch ARP 8740 bolts
• Forged 4032 aluminum DSS pistons with -5cc flat top design
• Plasma-moly piston rings with file-fit gap
• Premium rod and main bearings

This unbalanced rotating assembly is intended for internal balance applications and requires professional balancing before installation. The forged 4340 steel crankshaft and rods provide exceptional strength and durability for high-performance street and competition builds, while the DSS forged pistons deliver reliable performance under demanding conditions.