Chevy SBC 350 IMCA Racing Exhaust Headers - Black Speedmaster lightweight crankshafts are perfect

Speedmaster lightweight crankshafts are perfect for engines wanting quicker rpm

solid steel construction

Nitrous/injector bosses

with large radii on all journals for superior wear resistance

They feature a sharp

Chevy SBC 350 IMCA Racing Exhaust Headers - Black Speedmaster lightweight crankshafts are perfectIncrease your horsepower and torque for your ride just bolt on these Speedmaster headers! These headers are designed with 3 8 in. thick laser cut flanges and mandrel bent primary tube. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.