Six cylinder Intakes - What Do you Do ? -

["Brien Tourville" <hh7x@xxxx>]

The BEST of the Six Cylinder Intake Manifolds 
are those made from 1981 - 1986 by AMC>,

AMC / Renault spent a tremendous amount of
money Flow-Designing these - to create 
equal amounts of flow per runner and to
flow more mixture at a stable temperature
than the earlier AMC Six Intake Manifolds.

These are Aluminum Alloy - water cooled units.

While planning out a Super Six engine - 
for which I was to purchase a 4bb. Intake Manifold -

I came across a builders Interview - someone involved
with MOAB - that huge JEEP free for all Race - the
DAYTONA of Rock Crawlers & Desert Rats .

He builds JEEP Race Engines for a Living .

No - they do not use the aftermarket 4bbl. Manifolds.

These tend to 'Stall' the fuel delivery - as the Plenums
are usually big and the runners not Equi-Flo designed.

He adds a 4bbl. adapter plate to the - '81 - '86 AMC
manifolds - as this creates an 'Intake Venturi' effect -
keeping the charge sped up entering the manifold 
runners . Looks like an Hour Glass when cross 
sectioned.

Since the Manifold is kept cooled by the water jacket -
the charge stays at a constant temp. entering the
combustion chamber .

So - unless you're into Nostalgia Parts for some reason -
and crusty Cast Iron Intakes make it wet .....................

Upgrade your Six with the Hi - Perf Intake by AMC .



Brien.
NEW YORK


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Message: 20
Date: Sat, 13 Mar 2004 06:19:08 -0800 (PST)
From: harold losey <strlcuckoo_46@xxxx>
Subject: Re: Re: blowers whining thru 232 and 258 intakes...some
differences...

The two barrel intake I used on my 74 Gremmie/258, and replaced with a
four, was off of a 232 from the 60's. I still have it and the carb if
interested(before it goes on e-bay)

Jerry Casper <gremlingts@xxxx> wrote: As far as bolt-up goes, the
232 and 258 are the same....BUT, I think the 232 intake was offered ONLY
as a 1-bbl, whereas the 258 could be had with either a single or 2-bbl
carb. I don't think you could even get a 232 with a 2-bbl carb. So if you
wanted the extra power, you'd have to get the special 2-bbl 258 intake.
Different physically, not just a plate adapter, ya know. And you'd have to
get the "set" of intake and exhaust, I believe the exhaust manny's were
different between them, but not exactly sure. Best to get the whole deal
if you can, much like disc brake setups. :)