i got a 455 motor used I replaced my starter with a mini torque starter I got 3 starts out of it won't start anymore so I sent the starter back and tried to crank it over to make sure it wasn't seized with torque wrench wouldnt move with plugs in so I pull the spark plugs and it cranks over by hand so anybody have a idea what mite be going on ???????

 

liquid in the cylinders ? AF or gas ?

 

You may have burnt the fusible link , how did the wires look when you pulled the starter ? Could be anything really since its not seized, control module if equipped with HEI , corroded cable connections, battery drain, the list goes on.

Eric

 

Have no idea without some troubleshooting on your part. Is there 12v on the purple wire with the key selected to the start position and is there battery voltage on the big lug at all times? Is the battery fully charged?