1966 mustang starter and pulley troubles

Long story short I am helping a gal finish a 1966 Mustang, her husband died of Covid while assembling his dream car. I am not a Ford guy so to speak but a 62-year-old who has spent 40 years putting Chevys together mostly for hot rods. the car has a 1971 ford 302 with a T-10 4 speed. The ending and trans where in the car when I got it. Here are my two main stumbling blocks:

1. It has a 4-bolt crank pulley and 52oz balancer. I think I need a 28 oz balancer and a 3-bolt crank pulley, Through's?
2. I bought a starter for a 289 with a manual transmission. The starter measures 4.5" at the starter and hole in the plate seems to be about 1/16" under that size. Any direction would be appreciated.

Thank you in advance for your help,

Raymond
 
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You most likely have a 157 tooth flywheel on that which is going to call for an automatic starter. Doesn't make sense at face value, but I'll wager a crisp dollar that it'll fix your starter problems.

Starter.webp
 
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I wouldn't worry about the pulley and balancer unless you have a vibration with engine running or the crank pulley doesn't line up with the others. A 71 302 has a 28oz 4 bolt balancer and flywheel. The flywheel needs to match the balancer. Ford went to the heavier balancer and flywheel in the late 70's I thought, or possibly later in 1981? according to the internet....
 
The very first question is what kind and year is the engine? Then go from there determining which starter snout. Manual, automatic and 5.0 starter snouts are all different. An automatic starter snout plugged into a manual flywheel will damage the ring gear. Just two weeks ago, I was in an in-depth conversation about this topic and measured all 3 different snouts. The block FoMoCo numbers are cast into the block on the bottom right side. The starter has to be removed to see these numbers. Numbers starting with C6 mean 1966. D1 means 1971. E7T means 1987 5.0. Let us know before you use the wrong starter and cause a major issue. I'm not a KIA, just trying to save you some trouble.
 
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