the air-cooled jatco just has vents on the bell housing. There are fittings on the side to run a cooler if you want. Basically the same bellhousing and same gearbox

Thanks for that info mate... you dont have a original injection manifold laying around in the USA??

not anymore i sold it to a guy in nsw

Just found this again http://datsun1200.com/modules/myalbum/photo.php?lid=25422, if I can find one for the box that's half the work done!

Anyone recognise this bellhousing pattern? I'm not having much luck tracking down what toyota motor it fits. From there I hope to find a drawing of the pattern so I can design up an adapter....

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Sorry only just measuring this now for you. It’s 63mm from the Bell housing to the input shaft. The Bell housing is 153mm

Thanks for that. A bit more thinking to do but it looks like a cut and shut might be the best option.

I know a few others have done it but I've not seen a detailed right up on it. I can think of a bunch of things that could go wrong....

Those are links to web pages that includes photos

Is 153mm the distance from the automatic main case to front of the bellhousing?

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A pressure wash revealed 21R on the bell housing so that's what the gearbox is off I'd say.