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BB & Hemi Flex plates #1213210 04/09/12 08:00 PM 04/09/12 08:00 PM
Joined: Jan 2003 Posts: 6,149 Melbourne , Australia LA360 OP master
LA360 OP master Joined: Jan 2003 Posts: 6,149 Melbourne , Australia	I have some flex plates laying around and wanted to clarify what they were suited to. I have two 8 bolt neutral balance flexplates, one is a B&M and the other is a Mopar Performance unit. Are the Hemi and BBM 8 bolt flanges exactly the same? The other flex plate is a B&M unit, it's a big block external balance unit. That is for a cast crank 440 I am assuming? Thanks in advance! Alan Jones

Re: BB & Hemi Flex plates [Re: LA360] #1213211 04/09/12 08:09 PM 04/09/12 08:09 PM
Joined: Jan 2003 Posts: 75,088 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,088 A Banana Republic near you.	Yes the 8 bolt fits 2nd gen hemis and big blocks that either have 2nd gen cranks or current 8 bolt aftermarket cranks designed to fit in B/RB blocks. Mopar had 2 external balance big block weights , the 70-73 440 4bbl HP/70-72 6pk and then the Cast crank engines which are different so you need to know which that is .

Re: BB & Hemi Flex plates [Re: JohnRR] #1213212 04/10/12 06:33 AM 04/10/12 06:33 AM
Joined: Jan 2003 Posts: 6,149 Melbourne , Australia LA360 OP master
LA360 OP master Joined: Jan 2003 Posts: 6,149 Melbourne , Australia	The B&M flex plates have a part number, so I can look up their application. Thanks for the reply John Alan Jones

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