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B&M flexplate for Magnum 360?? #477985 09/23/09 10:47 PM 09/23/09 10:47 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 OP super gas
joedust451 OP super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Help me out guys, according to jegs, B&M doesn't make a flexplate for the magnum engine, but i'm wanting to make it so i can run a "N" balanced converter (no weights), it'll be going behind a 904 tranny, can i just use the B&M flexplate for the LA 360 & 904?? 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: B&M flexplate for Magnum 360?? [Re: joedust451] #477986 09/23/09 10:52 PM 09/23/09 10:52 PM
Joined: Feb 2004 Posts: 4,501 Gainesville,FL G goldmember master
goldmember master G Joined: Feb 2004 Posts: 4,501 Gainesville,FL	Why not use the factory magnum flexplate with the weights on it? No you cannot use the LA B&M flexplate.

Re: B&M flexplate for Magnum 360?? [Re: joedust451] #477987 09/23/09 10:54 PM 09/23/09 10:54 PM
Joined: Feb 2003 Posts: 8,684 A Andrewh master
Andrewh master A Joined: Feb 2003 Posts: 8,684	I have one for the 727,but am not aware of it for the 904. Theoretically you could just slot a hole in it and make it work for the 904.

Re: B&M flexplate for Magnum 360?? [Re: joedust451] #477988 09/23/09 10:56 PM 09/23/09 10:56 PM
Joined: Jan 2003 Posts: 9,826 las vegas 70AARcuda master
70AARcuda master Joined: Jan 2003 Posts: 9,826 las vegas	Application: �93-�99 Chrysler 360 w/TF727 Externally Balanced Dual Bolt Pattern (10" & 11-1/8") Item# 10242 that is the part number for the 727 flexplate for magnum....check the bolt circle on your 904 converter...if it is same as the 727 ...dont see why it would not fit... magnum are externally balanced but not the same as LA 360s due to the lighter pistons and rods... magnum use less weight on converter and BALANCER... Tony 70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)

Re: B&M flexplate for Magnum 360?? [Re: goldmember] #477989 09/23/09 10:58 PM 09/23/09 10:58 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 OP super gas
joedust451 OP super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: Why not use the factory magnum flexplate with the weights on it? No you cannot use the LA B&M flexplate. I couldn't find any weights on the magnum flexplate, am i missing something, its a 95 model. I've heard about longating one of the holes for the 904, does it matter which hole? 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: B&M flexplate for Magnum 360?? [Re: 70AARcuda] #477990 09/23/09 11:03 PM 09/23/09 11:03 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 OP super gas
joedust451 OP super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: Application: �93-�99 Chrysler 360 w/TF727 Externally Balanced Dual Bolt Pattern (10" & 11-1/8") Item# 10242 that is the part number for the 727 flexplate for magnum....check the bolt circle on your 904 converter...if it is same as the 727 ...dont see why it would not fit... magnum are externally balanced but not the same as LA 360s due to the lighter pistons and rods... magnum use less weight on converter and BALANCER... So i should be able to longate one of the holes on the B&M flexplate for the magnum 727, like i would have to do on the factory magnum flexplate right! Would this make sence? But if its for the 727, wouldn't the 904 converter bolt patterns be the same? 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: B&M flexplate for Magnum 360?? [Re: joedust451] #477991 09/23/09 11:08 PM 09/23/09 11:08 PM
Joined: Feb 2004 Posts: 4,501 Gainesville,FL G goldmember master
goldmember master G Joined: Feb 2004 Posts: 4,501 Gainesville,FL	Some years they had the weight on the flexplate.Maybe 96up? You can gently slot the hole in the flexplate to work with the early style converters.Just put the flexplate/converter on the bench and you will find 1 hole needs a little adjustment.

Re: B&M flexplate for Magnum 360?? [Re: goldmember] #477992 09/23/09 11:20 PM 09/23/09 11:20 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 OP super gas
joedust451 OP super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	So, would anyone happen to have a flexplate with the weights they would let go cheap 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: B&M flexplate for Magnum 360?? [Re: joedust451] #477993 09/24/09 01:58 AM 09/24/09 01:58 AM
Joined: Sep 2009 Posts: 172 Mooresville, NC I Intense RT Dan member
Intense RT Dan member I Joined: Sep 2009 Posts: 172 Mooresville, NC	I sent a b&m back to summit because I thought I could just take the weights off and put it on the balancer to check it. No weights, had a big crescent moon shaped piece cut out instead of adding weight on the other side. So, it was setup for external balance. I'm still efi and plan on running a 5.2 flexplate with the crank position sensor windows on the outside edge. Not sure if this helps you or not. Good luck.

Re: B&M flexplate for Magnum 360?? [Re: Intense RT Dan] #477994 09/24/09 11:55 AM 09/24/09 11:55 AM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 OP super gas
joedust451 OP super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	So, does the 904 & 727 converters have the same bolt pattern?? If so, don't see why the 10242 B&M Magnum 727 flexplate wouldn't work. I called B&M, they HAD a 10241 flexplate for the 360 magnum with 904, but its been discontinued. Last edited by joedust451; 09/24/09 12:40 PM. 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: B&M flexplate for Magnum 360?? [Re: joedust451] #477995 09/24/09 06:23 PM 09/24/09 06:23 PM
Joined: Jan 2008 Posts: 377 Michigan Troll B blk00rt enthusiast
blk00rt enthusiast B Joined: Jan 2008 Posts: 377 Michigan Troll	I have one that I slotted the hole on. If you want it let me know. I changed to an LA motor instead. PM me if you are interested. Rob Rob Dunn 1976 Dart Sport 360 2000 dakota RT 408 with 150 nitrous 2013 Dodge Ram 1500 Hemi 2009 Jeep Patriot

Re: B&M flexplate for Magnum 360?? [Re: blk00rt] #477996 09/24/09 07:44 PM 09/24/09 07:44 PM
Joined: Feb 2006 Posts: 164 Ma, USA North of Boston 74SatSundance member
74SatSundance member Joined: Feb 2006 Posts: 164 Ma, USA North of Boston	THis place still shows them as blowing them out. PAW If you do a search on 10241 flexplates you might find others that have leftover stocks.

Re: B&M flexplate for Magnum 360?? [Re: 74SatSundance] #477997 09/24/09 10:23 PM 09/24/09 10:23 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 OP super gas
joedust451 OP super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	blk00rt, sent you a PM Thanks guys 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

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