Re: Fw: 440 head question

[rll <rlipinski3@xxxxxxx>]

I played with blocking the heat crossover passage when i had installed an
aluminum manifold on my 440. I made shims I could slide in manufactured
from the steel bottoms of oil cans....shows how long ago that was....

It was summer in Phoenix AZ and I figured the aluminum manifold would warm
up fast enough to make any cold bog a minor problem. Long story short, 
the cold
bog was terrible and it seemed like the vaporization of fuel kept the 
manifold too
cool even after a 10 mile run to work. I jetted up about 4 numbers but 
still was
not happy with it.

Your results may vary

rob/ferts/phx

On 6/16/11 4:19 PM, Mike & Deb wrote:
> Steve,
> I believe the cavity you refer to is designed to isolate the exhaust 
> heat from "coking" the oil on the top of the head. I have never seen 
> any type of cover for them-make some! Maybe stainless?
> Mike LeFevre
>
>
>
>
>
>
>
> On 6/16/2011 4:25 PM, MO wrote:
> >   Thanks folks for the replys, but I am still a little befuddled,  I
> > know the port that goes accross the intake, under the carb can be
> > blocked off with an intake gasket,  What I am concered with is the big
> > semi-circle holes arounf that port. in the head. looks like he** and a
> > trap for dirt and small parts.  Are those also covered by the
> > aftermarket intake gasket??
> >
> > To Chick:  are you saying that instead of the stock type valley cover/
> > intakje gasket combo, that there is available a seperate valley cover
> > and seperate intake gaskets? . Thanks...........MO
> >
> > On Jun 16, 11:53 am, "Stephen Andrachek"<s.andrac...@xxxxxxxxxxx>
> > wrote:
> > > My friend MO,
> > >
> > >   You are exactly right.  You can block off the heat passage from 
> > > the heads
> > > to  the intake by using the correct valley cover.  You can get the 
> > > valley
> > > cover
> > >   from Hughes Engineering (Google them up) and very good intake 
> > > gaskets off
> > > of  them too with a bead of silicon built in around each port.
> > >
> > >   To take things a little farther, if you put an Edelbrock Air Gap 
> > > intake on
> > >   your car with a low-restriction air cleaner you will pick up a 
> > > noticable
> > >   amount of torque and HP.  But your engine is going to be a little
> > >   cold-blooded and will need a little warm up time that with the heat
> > >   passages blocked off.
> > >
> > >   Mancini's is also a great place to do business with.  Both 
> > > companies are
> > > all
> > >   Mopar, all the time and will answer questions over the phone for you,
> > > unlike
> > >   Indy Cylinder Head which does not want to talk to their customers 
> > > at all.
> > >   They consider that annoying and will refuse to answer your questions.
> > >
> > >   Hope this helps you in some way.
> > >
> > >   Stephen "Chick" Andrachek
> > >
> > >
> > >
> > >
> > >
> > > > ----- Original Message -----
> > > > From: "MO"<mic...@xxxxxxxxxxxxxxx>
> > > > To: "The 1962 to 1965 Mopar Mail List Clubhouse"
> > > > <1962to1965mopars@xxxxxxxxxxxxxxxx>
> > > > Sent: Thursday, June 16, 2011 2:21 AM
> > > > Subject: 440 head question
> > > > > This is for a 1978 head.Intake side -1/2 way between the intake
> > > > > ports.  where the heat crossover port is.  What does the semi-circle
> > > > > pocket in the casting intended to do. And what can be done to hide
> > > > > it?  I would be using valley cover with blocked off heat port.  
> > > > > Thanks
> > > > > for any help......................MO
> > > > > --
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