Yes, I think as long as you aren't racing these cars, and the bore out is
carefully mic'd and wall thickness checked, you can bore out to 2.9L
without too much problem. I wonder if you can simply resleave to 2.9L?
Oddly enough I have my A90 with one cylinder bored to 20 over, and the
others all at STD. runs beautifully smooth, albeit it only produces 85HP
so I'm not worried about it.
Alan
On Tue, Apr 30, 2013 at 4:31 PM, Patrick & Caroline Quinn <
p_cquinn@tpg.com.au> wrote:
> G'day
>
>
>
> I think it's an open ended question.
>
>
>
> The engine in the BN3/1 is exactly the same C-series engine that Geoff
> Healey was provided with by BMC way back in 1954 and was initially so
> disappointed in as far as power goes. It is a C26W engine which means that
> it was originally built for a Wolseley car. He then undertook quite a few
> experiments on the engine in the car, including fitting triple dual throat
> SUs before he was satisfied with the power. Sadly today I do not have those
> SUs nor can I afford to have them built.
>
>
>
> However when I bought the car back in 1974 it was fitted with standard 3000
> pistons and I have all the service records going back to 1965. So sometime
> between 1954 and 1965 it was bored out to take the pistons and ran
> perfectly
> well through to Easter 2011 when it lost part of No 2 piston which means it
> was not the fault of the block.
>
>
>
> Watch this space.
>
>
>
> Hoo Roo
>
>
>
> Patrick Quinn
>
> Sydney, Australia
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