MSD 50981 DynaForce High-Torque Starter Red Chrysler 318-440 4.4:1 Gear Reduction

The MSD 50981 DynaForce High-Torque Starter is a performance gear-reduction starter built specifically for Chrysler 318-440 cubic inch engines. Engineered to reliably crank the most demanding high-compression race and street engines, it delivers the power and durability needed where a stock starter simply can't keep up.

At the heart of the DynaForce is a 3 horsepower electric motor paired with a 4.4:1 gear reduction ratio, delivering exceptional cranking torque directly to the engine's ring gear — even on high-compression builds up to 18:1. The armature is precision-balanced during assembly and runs on two ball bearings for smooth, consistent engagement start after start.

The downsized housing is designed to clear most headers and oil pans, and the billet aluminum mounting block can be clocked to multiple positions for tight-clearance installations. A nickel-plated, heavy-duty solenoid ensures reliable performance even in severe heat environments. The entire assembly is finished in a durable MSD red powdercoat for long-lasting good looks under the vehicle.

All MSD DynaForce starters are built using all-new components, hand-assembled in the USA, and every unit is dyno-tested and blueprinted before leaving the factory. This part is emissions-legal for use on both controlled and uncontrolled vehicles.

Key Features:

• 3 HP motor for reliable cranking of high-compression engines
• 4.4:1 gear reduction ratio for maximum cranking torque
• Supports engine compression ratios up to 18:1
• Precision-balanced armature guided by two ball bearings
• Downsized housing clears most headers and oil pans
• Clockable billet aluminum mounting block for tight-clearance fitment
• Nickel-plated heavy-duty solenoid for severe-environment performance
• Durable MSD red powdercoat finish
• All-new components, hand-assembled and dyno-tested in the USA
• Emissions-legal for street and racing use