Product Description
Texas Speed 5.3L LS Drop-In Forged Piston & Rod Set
JE 3.780-Inch Forged Pistons | 4340 Steel H-Beam Rods | No Balancing Required with a Stock GM Gen 4 Crankshaft
Build a stronger stock-bore 5.3L LS rotating assembly with this drop-in forged piston and connecting-rod package from Texas Speed. The combination pairs JE forged pistons with Texas Speed Super H-beam rods, ARP L19 rod bolts, crankshaft-sized rod bearings and JE Pro Seal file-fit piston rings. When used with a stock GM Gen 4 crankshaft, the package is designed to install without rebalancing the rotating assembly.
Key Features & Benefits
- JE Forged 3.780-Inch Pistons: The included stock-bore JE pistons feature a 3.780-inch diameter and -4cc flat-top configuration with a slight dish and no valve reliefs. Their forged construction provides a performance-focused replacement for compatible 5.3L LS engine builds.
- 4340 Steel Super H-Beam Rods: Texas Speed manufactures these connecting rods from heat-treated and stress-relieved 4340 steel. The Super H-beam design provides the strength required for demanding naturally aspirated, forced-induction and performance-oriented 5.3L LS combinations.
- Multi-Stage Machining Process: Each rod is initially torqued and rough-honed before the bolts, rod and cap are separated to release residual stress. The components are then reassembled, re-torqued and final-honed to help the big-end bore remain round after installation.
- ARP L19 Rod Bolts: Every Texas Speed connecting rod includes ARP L19 fasteners for increased clamping force in performance applications. The Super H-beam rods are rated by Texas Speed for combinations producing up to 900 flywheel horsepower.
- Complete Rotating-Assembly Package: The kit includes JE forged pistons, Texas Speed Super H-beam connecting rods, ARP rod bolts, rod bearings sized for a stock crankshaft and a JE Pro Seal file-fit piston-ring set, combining the core components needed for a compatible 5.3L LS short-block build.
Notes
- No balancing is required only when this package is used with a stock GM Gen 4 crankshaft.
- Designed for stock-bore 5.3L LS engines; included rod bearings are sized for use with a stock crankshaft.
- Pistons have no valve reliefs, and the included JE Pro Seal piston rings are a file-fit design.
Key Fitments
- Fits 1999-2013 5.3L LS-Based Engines LMG LMF LM7 LC9 L33 LH6 L59 LS4 LY5 LH8 LH9
