Any suggestions on Stall converter?

1973mach1 · Feb 23, 2004

IM building up my 351c with 4bbl heads and want to go to a pretty wild yet streeable cam, probally a bigger x-treme energy cam, something that will still leave me enough vacumn for power brakes but give me lots of power. I was wondering what stall speed I should go with, would 2800 be fine? Basic setup, quench heads, flat tops, 10.5 to 1 compression, 3.70 gears, FMX trans, headers. I know I want a higher stall to get me into the power making RPM's of the 4bbl heads faster. I'll probally be running 3.70 gears, i'd like to go higher but for the ocassional/rare trip on the highway it might be too much, would 4.11 make much difference over 3.70.

Thanks,
Jim

68 & 00 GT · Feb 23, 2004

Don't forget to answer for yourself if you want a lock up, or non lock up version. I just went through that, and decided on a non lock up 2,500 stall for my new AOD, but my engine is a very mild 302.

brianj5600 · Feb 23, 2004

You have to pick a cam first. Then call the company you buy a converter from and they will tell you which one.

dodgestang · Feb 23, 2004

brianj5600 said:
You have to pick a cam first. Then call the company you buy a converter from and they will tell you which one.

What he said.

In a perfect world though you would build the motor and then get a dyno run on it. Then you take the print out to the tranny specialist and they build you converter to suit your specific motor needs.

As for driveability...I drive a 3k stall on the street with no problems in a race ready non-lock up AOD....you will want to add an external cooler into the tranny cooling system to help keep temps down when you are cruising below your stall speed.

ratio411 · Feb 23, 2004

Correct me if I am wrong...
I don't think lock-up/non-lock-up is an FMX converter option.
That is for electronic controlled trannys.

With a 351 in the heavier Stang, you will want to shoot a little low. The gears, cubes, and weight of the car will conspire to put you on the high end of the RPM rating.
2500-3000 range should be cool.
Well, it will run hot. You should put an extra cooler on the the tranny if you don't have one.
Good luck
Dave

1973mach1 · Feb 24, 2004

Thanks for the reply's.

Jim

Any suggestions on Stall converter?

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