if you have access to the machine shop , I would go
ahead and weld up a manifold . A blower manifold is
about the easiest to build .The runners are short so
there is less area to mess up . It is what I am doing
for my desoto motors ( normally aspirated ). Plus we
know a lot more about how to make a hemi run than when
that manifold was built.Use the stock intake to set up
the distributor height and angle and go after it . If
I were you I would not use a mig to do the job simply
because of appearances but thats up to you . I have
built many ( probably more than ten ) for various
applications . For a known quantity ( big block chevy)
it takes me about 60 hours to machine and weld up.
figure 80 or so if you are starting from scratch. I
tig everthing and and then remachine intake surfaces
afterwards. it weighs about a single carb when its
done.
if you need any help , contact me off list , I can
walk you through it.
George in DC
--- Dick J <lsr_man@yahoo.com> wrote:
> Chevy or not, I still have a roadster to build.
> Has anybody every machined (surface ground) the
> top off of a stock cast iron manifold until all
> of the runners were opened in order to weld on a
> plate or plenum to create a blower manifold?
> There is virtually nothing except a three deuce
> set-up available for that old Dodge 241 any more,
> and I would really like to put a blower on it. I
> know I could rig up a centrifugal with a newer
> two barrel without too much trouble, but that
> motor really wants to have a jimmy on top of it!
> I'm not sure I'm up to fabing a sheet metal
> intake, but I guess I could buy a mig and it
> could be a good "welding class project" for me.
> Any ideas?
>
> Thanks
>
> =====
> * * * * * * * * * * * * * *
> * Dick J *
> * (In East Texas) *
> * # 729 *
> * C/GRS C/FRS D/STR *
> * * * * * * * * * * * * * *
>
> __________________________________________________
> http://shopping.yahoo.com/
>
>
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