zipper your idea got me to thinkin about the bolts. i went out to check and they are knurled.i sure was hoping they werent!. the stlye of starter that im using is for early 70s high hp sbc.ive use this kind of starter for years on some engines when room wasnt a issue.ive taken the starter off our nova and put it on the ranchwagon. i dont temember the brand but i sure remember the price!!!!.HOPE THIS ONE DONT GO SOUTH!! thanks guys for all your help. i really appreciate everyone trying to help.it means alot to me ill let you know how long this one lasts.now i gotta come up with one for the nova. ouch. thanks again ken