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Old 12-04-2017, 12:14 AM   #1
michael a
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Default To flathead c4 speedway adapter

speedway adapter if any of you use one of these before if so how did you like any comments are appreciated
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Old 12-04-2017, 07:16 AM   #2
FHFD
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Default Re: To flathead c4 speedway adapter

Not sure about Speedways..but since you're considering a C4 behind a flathead, I'd recommend Flat-O-Matic out of Oregon.
I used Genes (Flat-O-Matic) quite pleased with it, been in my '40 now for several years.
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Old 12-04-2017, 09:12 AM   #3
Krylon32
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Default Re: To flathead c4 speedway adapter

I'm installing a Speedway C4 kit behind a 8BA this morning. Only draw back is a little grinding on the block for the starter to clear. Everything bolted together good. I'm putting this in a customers Model A chassis I built. Looks good together. I've done a Flat O Matic kit which also worked good.
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Old 12-04-2017, 09:20 AM   #4
skidmarks
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Default Re: To flathead c4 speedway adapter

I have the flat o matic kit and its pretty nice stuff, but havent installed it yet
Speedways stuff is knockoffs of other peoples stuff. Most of its OK but some of its pretty bad
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Old 12-04-2017, 09:35 AM   #5
Ol' Ron
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Default Re: To flathead c4 speedway adapter

I like the speedway adapter for installing the AoD Trans. The overdrive is very useful.
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Old 12-04-2017, 09:55 AM   #6
TJ
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Default Re: To flathead c4 speedway adapter

I and two others have used the Flat-O-Matic kit. It uses a smaller bell housing to clear the earlier firewalls. As I recall the Speedway kit uses the stock C-4 bell housing. that works good in the '41 and up cars , but may cause clearance issues in '40 and older cars.
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Old 12-04-2017, 11:05 AM   #7
George/Maine
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Default Re: To flathead c4 speedway adapter

Ford has 2 bell housing large and small 6 bolt. I used the small in my 39 ford and if you have trouble finding a c4 you can use one from 6 cylinder like a 80 Granada.
Best thing you can do for a good trans.
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Old 12-04-2017, 11:14 AM   #8
Ardun
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Default Re: To flathead c4 speedway adapter

I used Speedway’s adaptor for an AOD on an 8ba. Easy install with a little grinding for the starter. No issues or anything bad whatsoever.
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Old 12-04-2017, 12:10 PM   #9
Krylon32
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Default Re: To flathead c4 speedway adapter

After doing this install and having the block ground for the stock Ford style starter, I'm thinking why don't they use a Powermaster gear reduction starter which can be clocked for clearance and is smaller?
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Old 12-04-2017, 04:04 PM   #10
George/Maine
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Default Re: To flathead c4 speedway adapter

You can use power master with flatomatic they do sell other starters like pm 302 and flathead are different I think
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Old 12-04-2017, 04:06 PM   #11
TJ
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Default Re: To flathead c4 speedway adapter

I used the Powermaster mini starter on mine and it worked perfect. Also no more Bendix spring.
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Old 12-04-2017, 05:49 PM   #12
Ardun
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Default Re: To flathead c4 speedway adapter

I am very happy with Ford Truck 12 volt starter. No big deal on grinding. Some don’t require grinding.
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