[Fot] GT6 engine with "special" on the block?

[Scott Janzen]

I’ve only seen those cast bulges on a late model GT6 engine - I assume it’s because the blocks were interchangeable with the TR6 in later years, but am not sure.  Designed to clear the larger stroke of the TR6???  If this is the same as mine, the block is about 25 lb heavier than the earlier GT6 engine and I see no benefit to having it.  However, mine does not say Special on it.



On Aug 24, 2019, at 9:26 PM, Mike Harmuth via Fot <fot at autox.team.net> wrote:

This came up the other day on a Triumph forum. Stumping everyone there. Any ideas what SPECIAL on the casting means ? Not my car but interested in what it means.

"Engine number is KD7632E  

So my son’s gt6 is a mk2 w a mk1 engine in it. One thing I’ve never seen on a 6 cylinder engine is the word Special embossed on the block. It’s next to the drain plug on the right side. 

Anyone seen that before?   "

<image.png>

Thanks
Mike H
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