Power: The 350 starter is generally more powerful than the 305 starter, as it needs to be able to generate enough torque to start the larger, more powerful 350 engine. This difference in power is reflected in the specifications of the two starters. The 305 starter typically has a power rating of around 1.4 kilowatts (1.9 horsepower), while the 350 starter typically has a power rating of around 2.0 kilowatts (2.7 horsepower).
Size and weight: The 350 starter is typically larger and heavier than the 305 starter. This is because the 350 starter needs to accommodate the larger engine and generate more power. The 305 starter typically weighs around 15 pounds (6.8 kilograms), while the 350 starter typically weighs around 20 pounds (9.1 kilograms).
Mounting: The 305 starter and 350 starter use different mounting configurations. The 305 starter mounts on the passenger side of the engine block, while the 350 starter mounts on the driver's side. This difference is due to the different locations of the starter solenoids on these two engines.
Compatibility: The 305 starter and 350 starter are not interchangeable. The 305 starter cannot be used to start a 350 engine, and the 350 starter cannot be used to start a 305 engine. This is because the two starters have different power ratings and mounting configurations.
