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Re: Aluminum heads and wide ratio gears

To: "Kempinski, Rob" <KEMPIRO@mail.northgrum.com>
Subject: Re: Aluminum heads and wide ratio gears
From: Doug Mallory <rdmallory@earthling.net>
Date: Thu, 23 Jul 1998 10:59:42 -0400
I think the orginal 260 heads had a 58cc chamber. If you change heads make
sure they have a chamber the same size or less or you will go down in power.

I don't know any off hand that will fit for sure due to the different bore
size.

Doug Mallory

Kempinski, Rob wrote:

> My poor Tiger has  a stuck valve.  In the process of planning the engine
> removal next week, I'm considering doing some other stuff while the
> motor is out.  Instead of messing with the original heads, I was
> thinking about upgrading to some modern heads.  Has anyone used or have
> knowledge of aluminum heads for the 260? If not aluminum heads, any
> advice on some other heads for a little more get up and go?
>
> I know we have talked about gears before, but I wasn't listening all
> that well.  Is there a good source for getting a wider ratio first gear?
> I think this would be a good improvement without having to also pull the
> diffy.
>
> TIA.
>
>
> Rob Kempinski
> Northrop Grumman Technical Services
> Phone (703) 713-4284
> FAX (703) 713-4230
>


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