Brain fade couple basic questions need answer
#2093991
06/18/16 03:42 PM
06/18/16 03:42 PM
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Joined: Jan 2003
Posts: 2,345
west palm beach, florida
modelmakerinc
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,345
west palm beach, florida
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One: are small block and Big block 727 converters interchangeable? yes or why not
Two: is the 400ci internally externally balanced? Do you need a special flex plate like a 360.
Basic questions but I can think of the correct answer and not in the position to research. Thanks
Last edited by modelmakerinc; 06/18/16 03:42 PM.
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Re: Brain fade couple basic questions need answer
[Re: modelmakerinc]
#2094013
06/18/16 04:42 PM
06/18/16 04:42 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I can answer part of it.. the conv for a SB and a BB 727 are the same... when it comes to mounting it... it will slide in just like the other and it bolts on to the flex just like the other... normally the stall will be different but thats all... as to the balance... I dont know.. I never ran a 400 block 
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Re: Brain fade couple basic questions need answer
[Re: MR_P_BODY]
#2094034
06/18/16 05:34 PM
06/18/16 05:34 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
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Posts: 13,247
Mt. Vernon, Ohio
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According to B@M they are external balance.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Brain fade couple basic questions need answer
[Re: dartman366]
#2094056
06/18/16 06:32 PM
06/18/16 06:32 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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According to B@M they are external balance. IF he is running a external balanced conv he can knock the weight off... if if he needs to add weight MP use to sell the weights and the location to where it went.. but I dont know if they do any more or not
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Re: Brain fade couple basic questions need answer
[Re: modelmakerinc]
#2094060
06/18/16 06:45 PM
06/18/16 06:45 PM
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Joined: Jul 2013
Posts: 561
USA
B3RE
mopar
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mopar
Joined: Jul 2013
Posts: 561
USA
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One: are small block and Big block 727 converters interchangeable? yes or why not
Two: is the 400ci internally externally balanced? Do you need a special flex plate like a 360.
Basic questions but I can think of the correct answer and not in the position to research. Thanks As mentioned, converters yes. A cast crank 400 is externally balanced, and has it's own imbalance. Meaning, it will need a special 400 imbalance flexplate, or a torque converter with weights for a 400. A 360 or 440 will not be the same.
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
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Re: Brain fade couple basic questions need answer
[Re: modelmakerinc]
#2094094
06/18/16 07:27 PM
06/18/16 07:27 PM
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Joined: Jul 2013
Posts: 561
USA
B3RE
mopar
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mopar
Joined: Jul 2013
Posts: 561
USA
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It's available from B&M. Save yourself a lot of grief and pick up the plate for about $80 and call it a day.
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
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Re: Brain fade couple basic questions need answer
[Re: modelmakerinc]
#2094097
06/18/16 07:33 PM
06/18/16 07:33 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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B@M has a flex for use with neutral balance converters for the 400's
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Brain fade couple basic questions need answer
[Re: B3RE]
#2094109
06/18/16 08:11 PM
06/18/16 08:11 PM
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Joined: Jan 2003
Posts: 25,901
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,901
Rio Linda, CA
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A cast crank 400 is externally balanced, and has it's own imbalance. Actually, all cast crank BB's (383, 400, 440) use the same external balance weight. The B&M #10237 covers them all.
The INTERNET, the MISinformation superhighway
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Re: Brain fade couple basic questions need answer
[Re: John_Kunkel]
#2094130
06/18/16 09:07 PM
06/18/16 09:07 PM
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Joined: Jul 2013
Posts: 561
USA
B3RE
mopar
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mopar
Joined: Jul 2013
Posts: 561
USA
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A cast crank 400 is externally balanced, and has it's own imbalance. Actually, all cast crank BB's (383, 400, 440) use the same external balance weight. The B&M #10237 covers them all. My mistake John. You are correct.
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
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