ProMaxx Replacement Cylinder Head exhaust The BD AutoLoc commands the

The BD AutoLoc commands the torque converter to lock up

Includes a 9/16-18 O-ring port for a dual CP3 return line

Our design preserves thread engagement whereas other companies do not

(2) Cast Iron Cylinder Heads

The Bomber is a tight fitting front bumper for the new Bronco

ProMaxx Replacement Cylinder Head exhaust The BD AutoLoc commands theProMaxx Performance Cylinder Heads are designed as replacement cylinder heads with thicker castings in crack prone areas. Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install.