The cylinder heads are the giveaway. ;-)
The log head is the early 100/6
The pre BJ8 12 port head is different to the BJ8 12 port head casting
- different casting number, and a distinct difference around the
thermostat area - look at the sculpting of the head casting
In 3 litre blocks there are 2 castings. Pre bj8 blocks have the
dipstick low on the block. BJ8s have a high mounted dipstick
Obviously, the same general guidelines applies to sedans of the same
era. Eg a 1966 Wolseley has the same block/ head casting as a BJ8. But
many sedans had the starter motor on the opposite side to a Healey. Ie
different rear engine plate.
Chris
www.myaustinhealey.com
Sent from my iPhone
On 05/06/2010, at 10:44 PM, Derek Job <derek.c.job@gmail.com> wrote:
> Hi guys
>
> Are there any external differences between the six cylinder engines
> that
> would allow you to identify one as being either
>
> an IC (100-Six, Integral head)
> or 26 D (100-Six, six port inlet)
> or 29D (3000)
>
>
> thanks
>
> Derek
> www.healeysix.net
> ________________
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