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

Manley Performance Conrods TTuff I-Beam — 6-Cyl (Forged 4340 or 300M) Manley Performance TTuff I-Beam connecting rods are engineered for racers and high-performance builders who demand strength, consistency, and NHRA-compliant options. Available in premium forged 4340 or 300M vacuum-degassed steel , these rods deliver superior fatigue life and impact resistance for 6-cylinder applications. Key Features Premium materials: Choice of forged 4340 or 300M for maximum durability and toughness. I-beam design: Optimized for stiffness-to-weight ratio to handle high RPM and boost loads. NHRA Legal SKUs: Select part numbers meet NHRA Stock and Super Stock legality requirements. Multiple weight options: Tour Lites, Lightweights, Standard, and Heavy weights to match your rotating assembly balance needs. Precision machined: Tight tolerances for consistent fit, rod bolt integrity, and reduced vibration. Why Choose TTuff I-Beam Rods Whether building a street/strip engine or a dedicated race motor, TTuff I-Beam rods provide a proven combination of strength, reliability, and application flexibility. Their material selection and manufacturing quality make them an ideal upgrade for high-performance 6-cylinder engines demanding long-term durability and race-ready performance.