High Torque starter compatible with Oldsmobile® and Pontiac® V8 engines except 301. This product is not created or sold by GM®. The 4.4:1 gear reduction provides high torque for easy starting of stock and high compression engines.; MSD's DynaForce Starter is designed to crank over the highest compression engines on a hot day in Death Valley. Not that too many race cars are sitting in Death Valley, but it's good to know that you have the oomph to make it happen. The DynaForce Starter features all new components beginning with a three horsepower motor. This power is used to crank over the reduced 4.4:1 gear set to deliver great torque to the engine's ring gear to get the engine turning.