8 bolt crank flange

here is a brief discription of crysler style crankshaft flanges (scrolldown)
http://www.darkside.ca/clutch.asp

I havent finished the page but shows the different cranks

any company that makes performance clutches , hays, crower, ram, etc. makes the 8 bolt version , just tell them what you have for a crank, and need for ring gear ( chevy ring gears are often used on hemi/promods ... the chevy guys never give up)