Eagle Chevy 4.8/5.3 LS 4.000in Crank 58 Tth Rlctor 6.125in I-Beam 3.800in Pistons Balanced Assembly

If you're building a Chevy 4.8L or 5.3L LS engine for naturally-aspirated racing, this balanced rotating assembly from Eagle is a solid foundation. It's designed to handle the demands of performance builds where every component needs to work together reliably. This assembly includes all the key rotating parts, pre-balanced to ensure smooth operation and longevity under stress.

At the heart of this assembly is a 4.000-inch forged 4140 crankshaft, chosen for its strength and durability in performance applications. It features a 58-tooth reluctor wheel, essential for proper engine management in LS engines. The connecting rods are 6.125-inch long I-beam units made from strong 4340 steel, secured with 7/16-inch ARP 8740 bolts for a dependable connection. Forged 4032 DSS pistons with an inverted dome design and a -15cc dish are included, paired with plasma-moly file-fit rings. This piston and ring combination is designed for efficient combustion and good sealing. To top it off, King XP rod and main bearings are part of the package, offering excellent wear resistance and performance.

This assembly comes balanced from the factory, saving you a significant step in the engine building process and ensuring the rotating assembly is ready for installation. Please note that this part is not CARB approved and cannot be shipped to California. It also carries a California Proposition 65 warning.