The Ford Barn

chuck stevens · 08-09-2011, 06:20 AM

Has anyone used the speedway kit to put a c4 automatic up against a Flathead? I was wondering what it might entail, special starter, elc. let me know of any other trouble you ran into, thanks , Chuck.

Ol' Ron · 08-09-2011, 07:39 AM

This adapter also allows you to install the Ford AOD. A friend of mine is running one, no problem, runs great and the OD comes in around 40MPH. (4.10 rear)

George/Maine · 08-09-2011, 08:59 AM

I have used a Speedway one,there are 2 kinds,one with small 157 teeth bellhousing,and the large one 164 teeth this can be used on aod or c4.Use 12 volt starter and nose cone they supply with kit.Can only be used on 1949thur 1953 engines.They work well.

TJ · 08-09-2011, 09:12 AM

I have used both the Speedway kit and the Flat-O-Matic kit made by Gene Benson in Oregon. Each has it's advantages, but I prefer the Flat-O kit. Gene is very good at tech assistance and his kit uses a smaller bellhousing(special casting) which helps with clearance in the firewall area. It's a little more money , but I think it is well worth it.JMHO

fordcpe · 08-09-2011, 09:50 AM

The speedway kit you have to drill out the bottom two threaded holes for the adapter to bolt on I didn't like that but did it. It worked great in my 34 the C4 fit between my frame. The starter nose is the same as a 300 6 cylinder ford and the 157 tooth kit you have to grind a little clearance as the starter is hitting the block.Darrell

Krylon32 · 08-09-2011, 12:23 PM

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I've used both Speedway and Flatomatic. You had better not have any problems with the Speedway kit as their tech help leaves a little to be desired. My vote goes with Flatomatic which is a direct bolt on to the early engine and fits the late engine by using the Merc or Truck intermediate bellhousing. Fewer starter problems and less block mods. JMTC

Chris Nelson · 08-09-2011, 05:35 PM

I have used 2 of Gene Benson's Flat-o-matics. He is a great help and his product is first class. I have also used him for the transmissions since his shop was his dads transmission shop and he has all the parts for the C-4 as well as other conversions. He can supply a rebuilt tranwsmission with all the parts to put it in, like the Lokar shifter if needed and oil coolers. He is located in Salem, Oregon. His phone number is; 503-364-2934 Web site is www.flat-o.com

Elmo Rodge · 08-09-2011, 07:52 PM

I bought the Flat-o-matic kit and gene has been super with tech help. Wayno

joe plumber · 08-09-2011, 09:05 PM

I got one in my 55 f100 .No problems going on 6 years with it .Had to shim up starter when I first installed it .They have taken a jump in price since I first purchased mine, got the larger tooth kit .I really have never had a problems with anything I have purchased from Speedway .JMO

Bassman/NZ · 08-09-2011, 10:29 PM

How does the flattie cope with the parasitic loss of an auto?

chuck stevens · 08-10-2011, 05:46 AM

Thanks, for all the help. I like the idea of using a 300 six starter, easy to find.

08-09-2011, 06:20 AM	#1
chuck stevens Senior Member Join Date: May 2010 Location: upstate new york Posts: 758	speedways c4 kit Has anyone used the speedway kit to put a c4 automatic up against a Flathead? I was wondering what it might entail, special starter, elc. let me know of any other trouble you ran into, thanks , Chuck.

08-09-2011, 07:39 AM	#2
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,861	Re: speedways c4 kit This adapter also allows you to install the Ford AOD. A friend of mine is running one, no problem, runs great and the OD comes in around 40MPH. (4.10 rear)

08-09-2011, 08:59 AM	#3
George/Maine Senior Member Join Date: May 2010 Location: Mid coast Maine Posts: 1,878	Re: speedways c4 kit I have used a Speedway one,there are 2 kinds,one with small 157 teeth bellhousing,and the large one 164 teeth this can be used on aod or c4.Use 12 volt starter and nose cone they supply with kit.Can only be used on 1949thur 1953 engines.They work well.

08-09-2011, 09:12 AM	#4
TJ Senior Member Join Date: May 2010 Location: Napa,California Posts: 6,037	Re: speedways c4 kit I have used both the Speedway kit and the Flat-O-Matic kit made by Gene Benson in Oregon. Each has it's advantages, but I prefer the Flat-O kit. Gene is very good at tech assistance and his kit uses a smaller bellhousing(special casting) which helps with clearance in the firewall area. It's a little more money , but I think it is well worth it.JMHO

08-09-2011, 09:50 AM	#5
fordcpe Member Join Date: May 2010 Location: Lasalle Ontario Canada Posts: 94	Re: speedways c4 kit The speedway kit you have to drill out the bottom two threaded holes for the adapter to bolt on I didn't like that but did it. It worked great in my 34 the C4 fit between my frame. The starter nose is the same as a 300 6 cylinder ford and the 157 tooth kit you have to grind a little clearance as the starter is hitting the block.Darrell

08-09-2011, 12:23 PM	#6
Krylon32 Senior Member Join Date: May 2010 Posts: 4,489	Re: speedways c4 kit Sponsored Links (Register now to hide all advertisements) I've used both Speedway and Flatomatic. You had better not have any problems with the Speedway kit as their tech help leaves a little to be desired. My vote goes with Flatomatic which is a direct bolt on to the early engine and fits the late engine by using the Merc or Truck intermediate bellhousing. Fewer starter problems and less block mods. JMTC

08-09-2011, 05:35 PM	#7
Chris Nelson Senior Member Join Date: May 2010 Location: Poulsbo, WA. Posts: 356	Re: speedways c4 kit I have used 2 of Gene Benson's Flat-o-matics. He is a great help and his product is first class. I have also used him for the transmissions since his shop was his dads transmission shop and he has all the parts for the C-4 as well as other conversions. He can supply a rebuilt tranwsmission with all the parts to put it in, like the Lokar shifter if needed and oil coolers. He is located in Salem, Oregon. His phone number is; 503-364-2934 Web site is www.flat-o.com

08-09-2011, 07:52 PM	#8
Elmo Rodge Senior Member Join Date: May 2010 Location: Salina, Utah Posts: 325	Re: speedways c4 kit I bought the Flat-o-matic kit and gene has been super with tech help. Wayno __________________ Life is not a spectator sport.

08-09-2011, 09:05 PM	#9
joe plumber Senior Member Join Date: May 2010 Posts: 820	Re: speedways c4 kit I got one in my 55 f100 .No problems going on 6 years with it .Had to shim up starter when I first installed it .They have taken a jump in price since I first purchased mine, got the larger tooth kit .I really have never had a problems with anything I have purchased from Speedway .JMO

08-09-2011, 10:29 PM	#10
Bassman/NZ Senior Member Join Date: May 2010 Location: Napier, New Zealand Posts: 2,001	Re: speedways c4 kit How does the flattie cope with the parasitic loss of an auto?

08-10-2011, 05:46 AM	#11
chuck stevens Senior Member Join Date: May 2010 Location: upstate new york Posts: 758	Re: speedways c4 kit Thanks, for all the help. I like the idea of using a 300 six starter, easy to find.