Chevy SBC 350 Chevelle Camaro 1967-81 Raw Steel Exhaust Headers They are heat-treated prior to

They are heat-treated prior to thread rolling and machining and are rated at a whopping 190

Speedmaster H Beam Street / Strip connecting rods are manufactured from aircraft quality 4340 Chromoly steel

Speedmaster CNC ported cylinder heads are machined on dedicated 5-axis CNC machines to ensure accuracy and better flow

They're machined from billet aluminum for lasting durability and good looks

Chevy SBC 350 Chevelle Camaro 1967-81 Raw Steel Exhaust Headers They are heat-treated prior toIncrease 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.