Alternator Voltage Regulator D411 GM Chevrolet Cs130 Cs121 Cs144 Speedmaster timing tabs are precision-manufactured

Speedmaster timing tabs are precision-manufactured and bolt on using your existing timing cover bolts

heat-treated to a nominal tensile strength rating of 200

Whether you are narrowing a rear axle housing for bigger tires or just building a new housing for your street car

They feature a 63 to 1 ratio gearbox that easily rotates engines to your desired position by turning a crank handle

Understanding that being first across the line is what it's all about

Alternator Voltage Regulator D411 GM Chevrolet Cs130 Cs121 Cs144 Speedmaster timing tabs are precision-manufactured1 Wire Self Exciting Will fit GM applications CS130 CS121 CS144 OEM Replacement OEM Compatible