Eagle - BBM 4340 Forged Crank - 4.150 Stroke

Upgrade your Mopar RB-Series / 426 Hemi engine with the Eagle BBM 4340 Forged Crank - 4.150 Stroke. This forged steel crankshaft offers a 4.150 inch stroke with internal balance and a 2-piece rear main seal. Crafted with high-quality forged SAE 4340 steel, it features non-twist forging and multi-stage heat treatment for increased strength and reliability. Recommended for competition use, the design includes shot-peened, stress relieved, and nitrided surfaces to withstand extreme conditions. Precision engineered 6-bolt flange ensures a secure fit, making it a trusted choice for high-performance applications.