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best AMC for F.A.S.T./ Pure Stock

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sweatlock View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sweatlock Quote  Post ReplyReply Direct Link To This Post Posted: Mar/03/2019 at 9:06pm
The ‘72 Javelin w/ a 401 and 727 auto keeps getting picked, but the guy with the fastest stock car has a ‘71 Javelin w/ a 401 and a Borg Warner M12. 

No AMC’er wants to admit that the BW M12 auto is actually a pretty good tranny, lol.
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mixed up View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixed up Quote  Post ReplyReply Direct Link To This Post Posted: Mar/03/2019 at 11:18pm
if you have a good builder the fmx ford witch is the bother of these was not that bad of a trans it probably is the first gear ratio compared to the 727 witch make it  the good one 
69 amx 290 auto
65 220 290 4spd
80 ford fairmont
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amxron View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote amxron Quote  Post ReplyReply Direct Link To This Post Posted: Mar/09/2019 at 1:30am
The Borg-Warner M-12 has a more efficient gear train than most automatics.  The biggest problem is the cast iron center support will break under high horsepower and the bands need to be adjusted every 12k miles on the early ones.   The later FMX versions holdup much better.
 
Most people don't know they were used in Fords (starting in 1951), Studes, AMC's, Jags and several
European cars for several decades.
 
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