I know it started out as a 144ci... or at least as far as I know it did. Then there was a 170.
After that what? 200, IIRC, there was one sold here dubbed the 3.6... so that would be about 220, then it went to 250.
All of this with much the same layout... grew a couple of extra main bearings somewhere along the way, well, three actually. I'd say that happened at the '220' stage, in all probability.
Anyway, as I said, all with much the same layout, detail changes, the log inlet manifold cast into the side of the head. And there was a '2V' multiport option circa 1970.
What I'd like to know here is whether or not the derivatives we saw were as sold in the rest of the world, or if some were unique.
The head on the 250 came in for a complete change some time in the mid to late 70s, we saw the 250 block topped off with a crossflow iron head with 12 ports. A couple of years further on, maybe 1980, came an alloy version of the same. I don't know if the badges still later that proclaimed 'Alloy Head 2' meant anything or not.
Then there was a capacity reduction to 3.9 litres and a single overhead cam head went onto a heavily modified block. Still the same in most ways, but with some ribbing and changes. Still later, possibly 1990 or so, the boring bar got to work again and it settled at 4-litres.
Has the Falcon 6 engine followed the same path elsewhere, or did the Aussie one become unique at some point along the way?
