MSD DynaForce Starter SB Ford 289-351W RG100152XL The Zamp ZR-50 Race Shoe

The Zamp ZR-50 Race Shoe features high-quality multi-layer construction

1993-1998 Chevrolet K3500

Check Bracket Dimensions before ordering

134 lb/in Spring Rate

2003-2005 Ford Excursion

MSD DynaForce Starter SB Ford 289-351W RG100152XL The Zamp ZR-50 Race ShoeProduct Description: Starter DynaForce High Speed 4. 4: 1 Gear Reduction Black Small Block Ford Sold Individually Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The team at MSD is no different as we strive to deliver the products you need to meet your performance goals. We continue to innovate and invent components and technology that deliver