[Fot] GT6 engine block variations - TR6?

[Scott Janzen]

I weighed both blocks this morning, and discovered that the “TR6” block weighs about 11 lb more than the GT6-only block.  The primary difference seems to be that the cylinder walls extend about 3/4” deeper into the block to accommodate the added stroke of a TR6, and the related casting and webbing.   Don’t want the extra weight, so I think this block will go back on the shelf for the day I build a TR6 motor.  They must have made a running change at around the time the GT6 late Mk II or when the MkIII was introduced to standardize parts across the model range.

Scott

On Jan 7, 2018, at 7:16 PM, Gt6steve at aol.com wrote:


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