(puts on my production engineer's hat)
I doubt the Lockheed Cooper S brake calipers were made here, the tiny production run of 7500 sets? would be too small to amortize the high tooling cost. They were not used on any other cars here.

Ditto for the S wheels, which were all imported. Back in the 60s I widened wheels for Parramatta speed shop, and I couldn't buy the Cooper S 4.5J outer rims here.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I agree.

The part number for the disks/rotors is a UK one and remained as 21A1265 throughout Australian Cooper S and Clubman GT production (add around 1200 to the Doc's estimate for the GT). It is now GBD101.

Same for the calipers. They were always UK part 27H4656 and 4657 for the S and GT.

In general the parts made here were high volume and low setup and production cost. Almost all of the engine and transmission components were UK sourced, the only local examples being gaskets, seals and the like.

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ex-NSW Police 1970 MK II Cooper S
VMCI #43

BTA894 MOWOG on left and 21A1465 BMC on the right.

thanks for highlighting the difference between the arms. seems that one has a "hit me here" protrusion that they must have done away with during production changes.
Cheers
Neil

The brakes may have come in to Australia through the AP factory in Sydney. They possibly added local content by installing the pistons or bolting the two halves together or something like that. It would be interesting to find out.

Was the BTA item used in Oz??? Looks more like a UK MkII arm. The "ears" are identification features that allow Mk I and II arms to be differentiated as they don't have the same geometries...

The MKII arms were introduced with a revised steering rack that reduced the turning circle by about 3 feet. (A great mod for motorkhanas...

AFAIK Oz racks (and arms) retained the same geometry throughout production so all steering arms are interchangeable.

Cheers, Ian

Good point. I reckon the BMC management would have had some nice long lunches with AP, Girling, PBR, Smiths, Lucas, etc. to arrange "local production" of parts, with enough "evidence" to satisfy the local content regulators.

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ex-NSW Police 1970 MK II Cooper S
VMCI #43

Probably true. We had the most enormous magnum of champagne that for many years adorned my parents sideboard, it was compliments one of the major suppliers to Leyland. Dad was a Hardware Engineer there.


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68 Morris Cooper S Mk1 (*ex 78 1275 LS 4th last built, 70 Morris 1500 OHC & 70 MiniMatic)