Manley Performance Conrods TTuff I-Beam for 6-Cyl Forged 4340 or 300M Steel

Manley Performance Conrods TTuff I-Beam for 6-Cyl — Forged 4340 or 300M Steel Manley Performance TTuff I-Beam connecting rods deliver race-proven strength and precision for 6-cylinder engines. Engineered for competition and high-performance builds, these rods combine superior metallurgy, exacting manufacturing, and options to meet NHRA legality and application-specific weight requirements. Key Features Premium Materials: Choose forged 4340 or vacuum-degassed 300M steel for maximum fatigue resistance and durability under extreme loads. I-Beam Design: Optimized I-beam geometry minimizes weight while maintaining rigidity and crankshaft stability for high-RPM reliability. NHRA Legal Options: Select SKUs are certified NHRA Legal for Stock and Super Stock classes, giving racers confidence in compliance and performance. Multiple Weight Classes: Available in Tour Lites, Lightweights, Standard, and Heavy weights to match pistons, balance requirements, and tuning goals. Precision Machining: CNC-cut beams and high-tolerance pin/bore finishes ensure consistent balance and long service life. Whether building a street/strip daily driver or a dedicated race engine, Manley TTuff I-Beam conrods for 6-cylinder applications offer the strength, choice, and quality required to push horsepower and reliability to the next level.