Chevy LS1 LS6 Block Hugger Raw Exhaust Headers Standard valve sizes are 2

Standard valve sizes are 2

This new setup ensures a more 'crisp' shift

they're guaranteed for life

or street performance

The gears are precision-machined from the highest quality aluminum silicon bronze alloy for maximum durability

Chevy LS1 LS6 Block Hugger Raw Exhaust Headers Standard valve sizes are 2Increase 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.