XJ6 4.2 engine to early BW autobox

SV8Predator

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Further up the creek.
Just to be clear, you want to fit a 1950s DG gearbox to your 1980s S3 which originally had a Borg Warner Type 66 gearbox?

So completely different, very old-fashioned, different bell housing and gearbox, different spline, what a major undertaking.

Why would you want to do this?

If it's to fit a 4.2 S3 engine into your Mk 8, then use the gearbox that comes with the engine.

If it's to fit a Mk 8 DG box into your S3 XJ6 (which seems to be what you're asking), then (again) why?
 

Theregistrar

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You are assuming the 4.2 comes with a vehicle .
Simple - cost ! My Mk8 has only done 41,000 and have a 4.2 rebuilt engine
to replace the 3.4 which must have been an anchor in another life.
The 4.2 never came with a box so why spend money when I may have an option of
using the one I have ??
Thanking you in anticipation.
 

SV8Predator

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You are assuming the 4.2 comes with a vehicle .

I'm not assuming anything! Hence the two questions in my previous post!

rofl.gif
 

Fraser

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Physically, the engines are the same size, and about the same weight, I would estimate, but this will still be a major job, so are you ready for that ? Might be better to find a BW box that fits your Series 3 engine, a Model 65 or 66 will fit and maybe an earlier box that went on the Series 1 cars. There must be a few around still. That way the links to the rest of the car will be less daunting, (fuel, coolant, electrics etc).
 
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