55 ford pick up gotta question

What is the best tranny for my 351 cleavland? I want this babby to scoot. E mail my if you want to see a pic of it cstatum AT @ AT mchsi.com

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says...

The FMX was pretty much bullet proof. That is what was bolted to the back of my 351C in a 70 Torino GT. No problems with harsh use over 150,000 miles.
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says...

actually the c6 was the hipo replacement for the fmx which had a habit of cracking the center support under high HP and abuse. The c6 is well built for the most part. Just be sure to get all the upgrades. and if your looking for a manual a five speed aftermarket is my choice. For more in depth discussion go to alt.hi-po.big-block-ford-mercury the engine and drive train is on topic also. KB
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On 31 Dec 2004 17:33:51 -0500, jasongross

If your top priority is performance, a built C4 is the way to go. It is not not as strong as a C6 all else being equal.
The FMX will get the job done with the exception of weight as it is a cast iron case. The FMX is strong but, can be expensive to build because they typically grenade when they fail. Parts and someone who can "build" one can be hard to find around here.
IMHO, if you don't mind a small performance hit, the C6 is the way to go especially on the street. It is readily available since it was used up thru the '96 year model in some trucks. Several trans builders and suppliers like Summitt Racing have them complete ready-2-run.
Whichever trans you use, make sure you use a converter with a proper stall speed for your engine buildup and vehicle config. The right converter can make all the difference. The higher the stall, the more cooling you will need on the street. Stall too high, you are wasting RPM - stall to low and your slow off the line. If you are circle tracking, it's another game.
Lugnut
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