I assume Kevin meant he doesn't want to bore to a non-standard overbore
(1380cc) ?
Ulix
On Fri, 16 Apr 1999 Andrew.Griffith@ReadRite.com wrote:
> Valentine,
> Why would you not bore the engine?
> Any machine shop worth their salt will bore at least .010" just to true up
> the cylinders. The bore is needed because with prolonged use, many miles,
> the engine rings wear the cylinder walls into an elliptical/egg shape, that
> new rings alone will not cure.
> Over boring is a good thing, as long as you have the room and your walls
> aren't too thin. Most of your high performance 4 & six cylinder engines have
> a bore wider then the stroke.
>
> Andrew Griffith
>
> -----Original Message-----
> From: Valentine [SMTP:valntine@mail.ptd.net]
> Sent: Friday, April 16, 1999 4:44 PM
> To: spridgets@autox.team.net
> Subject: Engine Spec advise wanted
>
> I am going to rebuild a 1275. I have a block from a 74 and plan to
> rebuild with stock pistons and bearings.
>
> I am looking for a little increased horsepower for street use only.
> It
> is my current understanding that the better the engine can breath
> the
> more power I can extract from it.
>
> I plan on improving the cam with a mild street cam and doing some
> intake
> mods (ala Visard and Stapelton). I also would like to install
> headers
> and a less restrictive exhaust than stock.
>
> I want to keep the SUs, for now but may go to a weber later on.
>
> So, I need some opinions, (lots of them).
>
> Some questions to get you started;
>
> Will the mods I have stated above be useful without over-boreing the
> engine?
>
> What is the best choice of Cams? Headers? exhaust?
>
> What other work is warrented?
>
> Keep in mind I am striving for a good street runner not a racer.
>
> Thanks,
>
> Kevin
> 63, 71 and 74 Midgets
>
Ulix __/__,__ ___/__|__
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'67 Sprite '74 X1/9
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