[Healeys] External differences of six cylinder engines

Chris Dimmock austin.healey at gmail.com
Sat Jun 5 20:17:07 MDT 2010

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.

Sent from my iPhone

On 05/06/2010, at 10:44 PM, Derek Job <derek.c.job at 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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