what "overseas" six should I get?

well ws thinking that for a turbo setup that I would like a aussie xflow motor...was thinking of a head swap if it works.....but ehn started thinking that a t5 may not be beefy enough for it so I might go with a built C4 or a tremec in which case I could just have the whole aussie motor instead of the head. but should I stay 200 or goto a 221/223/250? or even go OHC? being that I will be having custom pistons made for the motor and other $$$ stuff the bas engine doesn't concern me as long as I can cheaply get a C4 or good manual behind it. so what to get?



nick
 
Get an alloy head 250 Crossflow. I you want something a bit more unique (over there I mean) you could go for the Alloy Crossflow 200ci. They have longer rods than the American cousin and along with the better head can be made cabable of very high revs.
I would still go for a 250 If it were me.
 
The V8 T5 should be up to it. It has a torque capacity of about 340 ft-lbs IIRC. More then enough for a 6, even a turbo six.

Slade
 
If it were me, I'd skip over the crossflow and get a newer 4.0 OHC instead. You can adapt almost any engine to any transmission if need be.
 
The alloy head crossflows are reasonably proven in terms of durability and potential. The older generation OHC (steel sump ones) are generally giving good reports, barring neglected examples, early ones and lemons.

Dellow make plenty of manual bellhousing options for both motors, but an AOD would have to be tooled up for. You would have to do more fabbing and there are less aftermarket bits, to fit an OHC your way.

It will end up being what you realistically can afford.

A "budget bruiser" would use secondhand gear on a crossflow. Recycle some 1.73 Cleveland roller rockers, buy a used Holley manifold (Redline or Cain), a secondhand Dellow Celica/Supra bell and alloy case + install kit; ship it all with the motor.

Regards, Adam.
 
I agree on the manual transmission issue. An R154 Supra tranny would b a good match on an OHC engine using a Dellow or other bell. Stronger than a T-5 and much smoother than a Tremec 3550.

Not sure I'd do an AOD though. Too heavy and too big. I'd look at adapting a 700R4 or 4L60 instead.

I like what I see on the OHC engines. The later ones have a full 12 counterweights which would smooth out the engine even more and the heads have some very sophisticated fast burn chambers. NVH would be even better. These things are obviously optimized for EFI, but if I were doing a turbo, that would be the only way to go.

The next big issue owuld be getting a proper chassis for it. An early Mustang or Falcon would need a lot of work to make it a suitable platform for a sophisticated powerplant like this.
 
The big OHC problem is the larger, cast sump on the AU and later motors. It calls for R&P (probably a major relocation; you may end up with strut suspension off another vehicle). Sure, a turbo with propane injection would be the duck's guts. :twisted: You'd want a chassis with a little more styling and finesse than Stu Korb's. :roll:
 
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