All Small Six Swap 3 spd to toploader

[prlfnkwrk2949]

I am wanting to put a 3 spd toploader from a 1971 f100 onto my 1966 200 (from what I understand, thw engine should have both bolt patterns), what should I expect modification wise? I will need a different trans support for sure but I am wondering about the tail shaft and if I need to do anything around the bell housing. Specific step by step directions would be awesome but i have come up empty handed and want to see what I've gotten myself into. The car currently has whatever 3 speed manual ford put on the 170. Thanks!

 

[ActionYobbo]

Verify you have the bolt holes for the other bell housing. Clean/chase those bolt holes. Get the bigger flywheel clutch and pressure plate.
Why not go with the SROD or the TOD?
Assuming you have the 2.77 now you will need the yoke for the new trans fitted to the drive shaft. Starter?

 

[prlfnkwrk2949]

Verify you have the bolt holes for the other bell housing. Clean/chase those bolt holes. Get the bigger flywheel clutch and pressure plate.
Why not go with the SROD or the TOD?
Assuming you have the 3.03 now you will need the yoke for the new trans fitted to the drive shaft. Starter?

Because the toploader is cheap and close by. Really the only reasons why

 

[DON]

I believe the older 3 speeds don’t have 1st gear synchronized, the 3.03 does, I also think they came in 1967. At least in mustangs

 

[ActionYobbo]

Because the toploader is cheap and close by. Really the only reasons why

Seems like a lot of effort to get more of the same. Also the bell housing must be from a 200 or 250 or it won’t fit. If it’s from a 240/300 or v8 it won’t work. Considering the 71 f100 did not come out with a compatible engine/bellhousing for what you are proposing to do you will have to use your existing bellhousing and clutch or acquire the 200 big bell and clutch.

 

[powerband]

the 3.03 3 Spd is virtually unbreakable behind the 200 and a considerable upgrade to the 'Peanut' 2.77 non syncro 1st - 3 spd.
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66 200 block should be 'dual drilled' for early small BH standard/2 spd Slushomatic tranny AND the larger BH, Clutch and flat faced FW.
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You can verify larger BH bolt pattern by looking at rear of engine. The small pattern auto/std BH is below top of block-cyl head line and the large pattern will have the top two bolt holes visible with the 2.77 BH. The later Toploader BH is flush to top of block at the cyl head line.
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'Dual Pattern block.

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Early small pattern block has BH @ 2" below cyl head :

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later 'dual pattern' block with 3.03 toploader is flush with top of block where meets cyl head.

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The C7ZA 3.03 Toploader Bellhouse is maybe most common and somewhat available. This one was on a 1971 Maverick 170. The larger flat faced Toploader Flywheel is also needed for the swap.

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the 2.77 uses the tiny 1100 series output yoke and rear universals with smaller tranny output shaft (25 spline ?). The toploader has the larger (28 spline ?) output shaft and typically has the lager 1300 series universals. Swapping from the 2.77 to 3.03 will need the DS 'retubed' with correct ends OR there is a larger 3.03 output yoke with small 1100 universals available from "Modern Drive Line". The length of DS needed is a question until swap is completed.

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The original '66 pedal clutch linkage can be used on the 3.03 BH with minor mod to original Z-bar to TO arm pushrod pivot location on the Z bar.
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Maverick 3.03 swap on my '61 used original clutch pedal linkage and the 3 on the column shifter from the 2.77.
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... when you're all done you will may be very happy with Toploader and later diaphragm clutch from Fairmont application.
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have fun

 

[vssman]

Here’s a photo of the difference between the small bell (left) and larger bell (right) needed for a 3.03

 

[ActionYobbo]

Here’s a photo of the difference between the small bell (left) and larger bell (right) needed for a 3.03

The OP says the top loader is out of a 71 F100 which only came with a SBF bellhousing. I interpret what he said to mean he thought the SBF bell housing would bolt up to his 200.

 

[vssman]

The OP says the top loader is out of a 71 F100 which only came with a SBF bellhousing. I interpret what he said to mean he thought the SBF bell housing would bolt up to his 200.

It’s onto his 66 200. Just giving him visual reference to the two bells that fit the engine and that he needs the larger bell for a 3.03.

 

[prlfnkwrk2949]

The OP says the top loader is out of a 71 F100 which only came with a SBF bellhousing. I interpret what he said to mean he thought the SBF bell housing would bolt up to his

It’s onto his 66 200. Just giving him visual reference to the two bells that fit the engine and that he needs the larger bell for a 3.03.

Its my understanding that the 200s made 1966 and after are drilled to take either of the bells. Is this correct?

 

[awasson]

I’ve put a 5-speed in mine now but from the factory my 1966 Mustang had a 3-speed top loader with the 200 inline-6.

You are correct tne 1966 is a dual pattern block and it takes a small bell housing as well as the large one. If you have a small bell housing on the block now, I think you will need to move the alignment pins to suit the larger one. The bell housing for the ford 200 that fits the 3-speed top loader is C7ZA-6394-A. That was the one my car came with.

In terms of tail shaft and that kind of thing, you will need to measure it up. You may need a different pilot bearing. You will need the proper bell housing and you will probably need a different yoke on the drive shaft or slip into tne tail shaft. Check Rock Auto. Look up your vehicle, year and select the correct engine and it should tell you the correct clutch, pressure plate and other parts. You may need to visit the wrecker for some parts.

 

[vssman]

Here’s a photo of where the dowels need to be moved (pins are in the small bell location. Boxes are where they go)

 

[ActionYobbo]

To OP
The 200 “small six” is drilled for both small six bell housings.
71 f100 came with a “large six” or a v8 both having the SBF bellhousing housing bolt pattern.
The only part from the F100 you can use is the toploader. You can’t use the bell housing or the flywheel etc so you will need to find the 3.03 bell housing and flywheel to complete your project.

 

[Frank]

https://fordsix.com/members/prlfnkwrk2949.266006/- welcome. There are at 3 different gear ratios on the 3.03's. Some of the trucks in the '70's era had a "heavy duty" 3.03 with 3.26:1 first and 1.91:1 second gear. The gap is wide, but the take off torque is excellent. No way to know if you have one except checking the ratios before install, or if the ID tag is still intact. I have one of these behind a 240 powered f100. It truly is a very rugged trans. Best of luck with your project.