RE: LT-1 Heads

[Carl Summers <InTech@writeme.com>]

Mark,
    Are you sure LS-1's are standard flow??? I was just changing a
thermostat on an LS-1 truck engine and the thermostat was on the block not
the intake or after the heads(I assume)...you could be right though as I
noticed only about a 10 degree drop from stock and I verified the thermostat
opening at ~160F in a pan of water on the stove(I always do that with an
unverified product) What gives??? If it is truly a standard flow engine this
would explain the lack of temperature drop....engine still runs around
185-190F....Anyone else have feedback on this as well????
-Carl Summers

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-----Original Message-----
From: owner-gmecm@diy-efi.org [mailto:owner-gmecm@diy-efi.org]On Behalf
Of Romans, Mark
Sent: Monday, September 04, 2000 6:33 PM
To: gmecm@diy-efi.org
Subject: Re: LT-1 Heads


L98's are standard flow
LT1's are reverse flow
LS1's are standard flow.
L98 and LT1's shares some bottom end components.
LS1's share no components with prior smalll blocks.
Mark
----- Original Message -----
From: "Gabe" <gellett@earthlink.net>
To: <gmecm@diy-efi.org>
Sent: Monday, September 04, 2000 4:57 PM
Subject: Re: LT-1 Heads


> The LS-1 is a completely new design engine, where the LT-1 still had the
old
> small block rotating assembly.  If I remember correctly the LS-1 heads
have the
> Ford 4 bolt per cyl setup instead of the 5 like the older heads....
>
> Gabe
>
> WEG1192@aol.com wrote:
>
> > Ok, what's the difference between the LT-1 and the LS-1? I thought the
LS-1
> > was the start of reverse flow cooling? Just trying to educate myself on
the
> > later engines.
>
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