Ken,
Arte you sure about that number? .25 is a quarter of an inch. That seems
to be a bit extreme for milling a head. If it is a 1500 head on a 1500
engine, it would give you about 250 pounds of compression on each cylinder
and ping like a pinball machine.
I might buy .025 whoch would be a bit more reasonable.
On the other hand, a quarter of an inch would be reasonable for a 1500 head
on a 1300 engine because the heads are about a quarter inch thicker than
those of a 1300 to begin with.
I learned this the hard way! :)
Joe
----- Original Message -----
From: "Ken C" <sdspitfire@hotmail.com>
To: <Cwn74@aol.com>; <spitfires@autox.team.net>
Sent: Thursday, May 11, 2006 5:58 PM
Subject: Re: 1980 Spitfire Head
> A machine shop removed about 0.25" on mine, yielded about 9.6:1 with flat
> top pistons.. So, probably around 0.2".
>
> I did not replace the pushrods, but it's something easily checked when
> assembling the engine.
>
> Ken C
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