8 bolt crank flange
stock factory cranks come with 6 drilled and taped holes..
8 bolt cranks are Mopar Performance cranks
Just sold a 3.58 stroke 340 main 4340 billet crank a couple of months ago and it had 8 bolts....had a b&m 8 bolt flexplate for it also.
a guy in arkansas bought it for a jr. fueler.