Quest to getting my Slant six to turn over

I had the same issue with my /6 a couple weeks ago. Starter would not spin even with a jump. I suspected the battery was bad so I got a ride home and borrowed the battery from my daily driver and substituted it for the one it in the Valiant. Bingo! Instant start.

You can easily remove your starter and take it to a big chain auto store where they will check it for free.

Or do what I've done before and put the starter on the ground and put 12 v to it with my foot holding it down. You will instantly know if the solenoid is eorking and the starter is spinning.