starter knock
i have a 400 sbc and ive been threw a starter or two and a flywheel and when i go to start the motor it will spin over and the the starter starts knocking and usually get stuck and doesn't turn over give it a little bit and i can turn it over again it will turn it over and get it started but once i turn it off and try again it will struggle and knock
and the starter is planty strong enough and so is the battery anyone every had this happen