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Flathead V8 to Ford AOD Transmission Conversion Kit

Flathead V8 to Ford AOD Transmission Conversion Kit

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a kit.

Details

Reviews

Q & A

What's in the Box

Adapt your 1949-1953 Ford Flathead V8 engine to a modern Ford AOD automatic overdrive transmission so you can keep those stump-pulling low rear end gears, while still maintaining engine life and gas mileage. Plus, the lightweight flexplate and torque converter do wonders for throttle response and stop-and-go driving!

This kit includes Speedway's Street King AOD Ford transmission compltely remanufactured with heavy duty clutches, special shift kit, torque converter, engine adapter, special flexplate, modified 12-volt starter, hardware and instructions.

Transmission has a one year warranty.

NOTE: Must be used with open drive rearend (not included). Cooler, shifter, and chrome dress-up parts are sold separately. Fill tube, dipstick and kickdown cable are included. 

Application

  • 1949-1953 Ford 8BA and 8CM Mercury Flathead V8 engines without integral bellhousing

Notes

Speedway Street King AOD transmission features:

  • Handles up to 450 HP
  • 2200-2400 rpm stall torque converter
  • Firm, crisp shifts from Kevlar bands & H.D. clutches
  • Extra wide overdrive band & extra 3-4 clutches to cushion downshifts
  • Street/Strip Valve Body - everyday street driving and weekend trips to the drag strip
  • Improved Lubrication Circuits - reduced heat/prolonged life
  • Chrome steel transmission pan
  • Includes TV pressure cable, dipstic, & fill tube

Warranties

All warranty issues should be addressed to:

Performance Automatic, Inc.
Attn. Harvey Baker
8174 Beechcraft Ave.
Gaithersburg, MD 20879
P 301-963-8078
F 301-963-5076 

Item Details

for 1949-53 Ford Flathead V8

Customer Reviews

This product has no reviews.

Product Q&A

8 questions : 8 answers

1 answers

can i use a Powermaster starter instead of the one in the kit??

Pozz
Waukesha, WI, USA
January 01, 2015

can i use a Powermaster starter instead of the one in the kit??

Answers

January 02, 2015
EricM
With the adapter plate in place we suggest using the intended starter that comes in this kit with the modified nose cone in order to get full flexplate gear engagement.
1 answers

Will the AOD fit in a 1953 ford mainline with out any modifications to tunnel or crossmember

uglykid
December 28, 2014

Will the AOD fit in a 1953 ford mainline with out any modifications to tunnel or crossmember

Answers

December 30, 2014
EricM
There will likely be some modifications to the floor pan tunnel or where the trans hump is at. The overall length of the AOD is 30 3/8” and from front mount to cross member mount center is 22 5/16”. There are width and height dimensions on the internet by searching AOD dimensions to understand modifications needed.
1 answers

Do you sell adapter kit WITHOUT transmission and convertor ? If so, how much ? Thank you !

Avenged48Ford
Conway, SC, USA
September 06, 2014

Do you sell adapter kit WITHOUT transmission and convertor ? If so, how much ? Thank you !

Answers

September 08, 2014
EricM
Yes we offer the conversion hardware separately as kit number 91628901. That kit for the C4 will also work on the AOD transmission as long as you choose the 164 tooth flex plate.
1 answers

will this kit work on an H series 226 flathead six? I would like to replace the 4 speed non synchronized transmission in my 1949 ford f-2 with a ford aod transmission. The truck has a 226 cu in h series flat head six engine. will this kit work in that truck?

olewilly
Maryville, TN 37801, USA
December 06, 2013

will this kit work on an H series 226 flathead six? I would like to replace the 4 speed non synchronized transmission in my 1949 ford f-2 with a ford aod transmission. The truck has a 226 cu in h series flat head six engine. will this kit work in that truck?

Answers

December 06, 2013
EricM
No, the Flathead six did not share the same bell housing configuration and the adapter plate for the Flathead V8 will not match up.
1 answers

AOD into 31 Model A I want to put an AOD behind my 53 Merc CM. My frame is aftermarket boxed. What drop should I have for my trans mount and what about pinion angle with chassis unloaded? Any problems with body or floor boards?

hotrodhillbilly31
Abbotsford, BC, Canada
August 18, 2013

AOD into 31 Model A I want to put an AOD behind my 53 Merc CM. My frame is aftermarket boxed. What drop should I have for my trans mount and what about pinion angle with chassis unloaded? Any problems with body or floor boards?

Answers

August 20, 2013
Jason
Kit number 91028907 puts an “AOD transmission behind your 49-53 flathead engine. Cross member drop for the trans will need to be mocked up to determine the drop you actually need. Pinion angle should be set at ride height with the rake taken into consideration. The imaginary line from the pinion shaft as compared to the line out the end of the transmission should never cross to avoid vibration. They can run parallel but never cross each other. Depending on your floor and firewall it is common to have to open up the transmission area in the firewall and front floorboard when comparing to stock drive train.
1 answers

can it be used in a 1952 f-1 Pickup Are there any fitment issues with the firewall or floor

slim1952
Vernon, CT, USA
January 24, 2013

can it be used in a 1952 f-1 Pickup Are there any fitment issues with the firewall or floor

Answers

January 25, 2013
Jason
This transmission conversion kit will also work on the 1948-53 truck blocks and we have not received any negative comments on clearance issues. With the transmission dimensions different from the standard transmission the tunnel may require modification..
1 answers

Is there any major fitting problems with this trans into a 1940 ford sedan??/ What about rear support/ frame cross member in the way...??

Sonoma Ca.
September 14, 2011

Is there any major fitting problems with this trans into a 1940 ford sedan??/ What about rear support/ frame cross member in the way...??

Answers

September 15, 2011
Zach
Speedway part number 91028907. This Flathead AOD transmission should work in a 1940 ford, as long as you have a 49-53 8BA block with the flat bell housing on the back, and you are using an open driveline. The rear cross member will likely need to be modified to accept the new transmission.
1 answers

Will this work with the stock '94' carb. or is an alternative setup for the TV?

Joe
Crossville, Tn
April 18, 2015

Will this work with the stock '94' carb. or is an alternative setup for the TV?

Answers

April 20, 2015
John
Expert
The TV cable is included with this flathead to AOD kit and many customers have used it with the stock carburetor. Depending on your throttle cable some cables will mate up with the TV cable or bracket and the pressure gauge included will determine proper TV setting which can be set with either the shop manual or a Ford technician.
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