Wiseco Boostline LS6125-927 4340 Forged I-Beam Connecting Rods, 6.125-Inch, GM LS/LT1, Set of 8

Upgrade the rotating assembly of your GM LS or LT1 engine with Wiseco Boostline LS6125-927 connecting rods. Designed for performance applications, these forged 4340 steel I-beam rods provide a strong and dependable foundation for high-output engine builds. The set includes eight connecting rods engineered specifically for GM LS and LT1 series applications, making them a practical choice for rebuilding or upgrading a complete V8 engine.
Each Wiseco Boostline connecting rod features a bushed small end for improved wrist-pin support and compatibility with performance piston assemblies. Forged construction delivers enhanced strength and durability compared with standard cast components, while the 7/16-inch cap screws help provide secure clamping under demanding operating conditions. The 6.125-inch rod length is engineered for the specified LS and LT1 combinations and should be verified against the piston, crankshaft, and compression-height requirements of your application before installation.
Wiseco part number LS6125-927 is supplied as a matched set of eight rods for consistent engine assembly. These rods are intended for professional installation and should be inspected, measured, and assembled according to the manufacturer’s recommended procedures. Confirm clearances, fastener specifications, and balancing requirements during the build to help support reliable performance. With forged 4340 steel construction, an I-beam design, bushed small ends, and performance-oriented cap screws, this Boostline set is well suited for street, strip, and competition-focused GM LS/LT1 projects.

Features:

• Brand: Wiseco Boostline

• Part Number: LS6125-927

• Application: GM LS and LT1 series engines

• Design: I-beam connecting rod

• Material: Forged 4340 steel

• Rod Length: 6.125 inches

• Small End: Bushed

• Cap Screws: 7/16-inch

• Quantity: Set of 8

• Intended Use: Performance engine builds and replacements