So i am having problems with the starter on my 67, and first off let me tell you that the previous owner pulled out the 326 and put in a 350 chevy and the block is a newer one 76-82 i believe

I found this out at orileys, when first asking for a 67 firebird starter and getting one where the bolts are parallel with each other the one i have are not in line, so after looking at the starter, it was deterimned it was a 350 chevy

Now after puttin one in arounf may, it really grind and whined during the end, took it back to orileys, still under warranty, worked great for about a month, now its starting to do the same. could it be the flywheel maybe?