Have a Powermaster 9603.1 starter, 11 tooth, (connectors on the Right side), that went bad - gear spins in both directions! Only 7k miles on car. Ordered new 9603 from Summit but connectors on the wrong side (Left side) and battery post was too short. (9603 picture from Powermaster is the same as my current 9603.1 - what gives?. Although Summit picture is what I received)
Anyway, 427 SBF, 10.5 compression (?), 5sp, 8 quart Avid
oil pan. Always seemed to have slow cranking. Changed battery which helped. Thinking of a higher torque starter.
Current 9603.1 has 11 tooth gear, 3/4" offset. Looks like many High Torque (max 18:1 compression) have 9 tooth gears.
Do I have to use an 11 tooth gear starter or can I use a 9 tooth gear replacement?
Recommendations for new starter? MSD 5090 looks interesting.