BBM 4340 Forged H-Beam Rods 6.760 w/ARP2000 Blt

The BBM 4340 Forged H-Beam Rods 6.760 w/ARP2000 Blt represent professional-grade engine internals engineered for high-performance Mopar B and RB-Series applications, including the legendary 426 Hemi platform. Designed for serious engine builders and motorsports competitors, these connecting rods deliver the structural integrity and precision required in extreme duty cycles where stock components fall short. Set of eight rods provides a complete solution for full engine rebuilds targeting increased horsepower, rpm capability, and sustained reliability under boost or nitrous oxide systems.

Forged 4340 steel construction offers superior tensile strength and fatigue resistance compared to cast alternatives, critical when managing increased combustion pressures and inertial loads at elevated engine speeds. The H-beam profile optimizes strength-to-weight ratio, reducing reciprocating mass while maximizing rigidity during detonation events. Bushed design with 7/16-inch cap screws provides precision bore tolerances and secure fastening, while ARP2000 fasteners—rated for extreme service—ensure bolt preload consistency through thermal cycling and shock loads inherent to high-output engines. At 6.760 inches in length, these rods accommodate specific crankshaft stroke geometries for Mopar platforms, enabling proper piston positioning and valve clearance margins.

Engine builders specializing in Mopar B/RB-Series restorations, street performance builds, and competitive drag or circle-track applications rely on this specification to support 500+ horsepower outputs safely. Installation requires precision machine work including bore honing, pin fitting, and ARP fastener torque-sequencing per manufacturer protocols; professional machine shop assembly is strongly recommended. Compatibility is limited to Mopar B-Series (340, 360, 400) and RB-Series (383, 400, 426 Hemi, 440) engines with 6.760-inch rod length specifications. Complete set eliminates sourcing mismatches and ensures uniform load distribution across all eight cylinders for balanced operation.