i have a 408w stroker that i built and didnt realize it was internally balanced and had some vibrations when driving it. i brought it to the gas station and it wouldnt start. it turned over couple times then it sounded like start was grinding then it would only click. did i damage the motor? or is it a messed up flywheel and starter...ps im going to change flywheel and harmonic balancer to internal ones. id like to hear some expert advice as this is my first build and have a lot of money already into it.