Dave Terrick wrote:
> James (and list)
>
> As the owner of the GT6 from Hell, I must be the devil. Ha ha, but
> seriously, in reply to your Devil's advocate position on heads, in fact BL
> DID make a special North American head and it WAS precisely for the 6 cyl
> when first imported.
>
> History books show th petrol injection was "unable" to meet the new 1968
> emissions "laws" (guidelines?!?) and a pair of emission control Strombergs
> was hastily cobbled up. Everyone else got injection.
I read somewhere that this was not the case, and the reason was that BL would
haveproblems servicing the unit in the U.S, because the technicians were not
trained on Lucas
F.I. Apparently the injection unit had quite low emissions.
>
>
> Oddly, there must have been a separate casting because the port spacing of
> the intake manifold on the head is different on the Tr250 and 6 up to
> (about) 1972. Then, we got the "late" head which was in fact a lower
> compression version of the ROTW's. It also had a smaller exhaust valve.
>
> GT6's in mark II and on (1968+) always used the euro casting but at a
> higher compression.
>
> Dave Terrick
> Winnipeg
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