High torque starter (1.9 horsepower) for all 356 models. The starter works great in hot or cold climates, or with engines that have high compression ratio. Its full ball-bearing construction and advanced electrics provide more cranking torque than standard starters, and it eliminates the bell housing bushing of the old type starters. It weighs pounds less than your original. 12v system with matched drive gear for a 6v ring gear. No modifications necessary.