Technical chevy 4 x 58mm sidedraft weber inlet manifold

hello is anybody familiar with a chevy small block 4 x 58mm sidedraft weber inlet manifold,,part no 3742580/00,, not for sale just chasing info on item,,thanks parkey,, australia

 

Does it look like this?

 

no,,what is that one to suit,,

 

this is it here

 

Grand Sport Corvette.

 

it has mechanical fuel injection throttle bodys on it (unfinished) it is a gm type manifold to suit 58mm webers

 

That appears to be a mechanical fuel injection manifold, not a carburetor manifold.

Or a manifold that could do either, with mechanical injection stacks on it.

 

is it a racing type one?

 

someone has made the throttle bodys,, i have the blue print drawings of throttle bodys,, the manifold suits 58 mm weber carbies,, a few people back in the 60s used this manifold with webers in racing out here,,just chasing a bit of info on manifold,,it appears to have a gm part number on it 3742580/00

 

Mechanical fuel injection is full-race.

They tend to be all on, or off.

A few folks have managed to get them to run on the street, via secret voodoo magic.

You might just have a mismatched pile of parts.

I see no evidence of injectors, just unfinished bosses, but there are injector stacks, that appear to not have throttle blades.

 

The only one that I know of that GM made was the one I posted.

 

,, the manifold looks similar to this one with webers on a australian racing car from the 60s

 

ime not sure,,i thought someone would know,, it came from america somewhere,,there is no brand on it only 2 sets of numbers,, also the linkage brackets have traco stamped in them,, has the same type oil filler tube in centre of manifold

 

TRACO was big into Can-AM and Formula A stuff in their time,,,,
Thought someone would pick up on this,,google [TRACO EMGINES]

 

thankyou scrapiron,, ile look into traco engines,, merry xmas

 

Moon

 

Oops
http://www.corvetteforum.com/forums...733873-8-throttle-body-cross-flow-intake.html

 

McKay is my guess, probably from a circa 1965-67 USRRC or Can-Am car. Most of the Formula 5000 ones I have seen used down-drafts.

 

My guess is this is not the same piece, the one on here looks to be magnesium? But I HAVE been wrong before...

 

Correct George, just thought being the thread was from Oz, there was some technical value in the read.
I came reeel close to getting either a TWN or a Moon intake, even had a good chat with Fred Larsen at Moon about it.
I came to my senses when the whole shebang was in the 5K plus price range.

 

My guess is the bosses on top of the runners are for throttle linkage, not fuel. Photo caption didn't say, but my guess is, looking at the scallops, this is either Jerry Grant or Masten Gregorys McLaren. Doug I bet you saw Jerry race a few time, eh?

 

You aint the only one that lusts after that stuff!!

 

Speaking of lust, check out this mechanical porn.
My apologes to the OP, just can't help myself when it comes to this stuff.

http://www.lucasinjection.com/MANIFOLD_pics.htm

 

I actually already had that saved to my favorites! Great minds...

 

remember the T-70 coupe with the traco sb with downdraft webers that Hot Rod rod tested in the late '70s? man, if only I had been some scumbag Wall street bond trader....

 

parkey,
I am with falcongeorge in that the bosses appear to be mounting points for the linkage as opposed to locations for injectors. If it does have the 58 mm side draft bolt pattern it would be a good idea to think about making the injection functional as 58's are about as easy to find as rocking horse shit or unicorn horns (and about the same price range). In the days of Novas, Camaros and Mustangs in the Australian Touring Car Championship a number of cars ran 58 side drafts. I have a photo somewhere of Terry Allen's 67 Camaro with 58's on a big block that I took at Mallala back in the day. Beechey's Monaro had "drip feed" Lucas injection but I think that the Nova had side drafts.

Roo

 

Doesn't some Volkswagen outfit with a name like JC Engineering or something make 58mm sorta weber knock-offs?

 

Try these guys.
http://jayceevw.com/webers_by_jaycee
David Vizard mentioned in one of his books that these guys make 62 mm downdrafts but that was some time ago. They also do 58's. Its worth an email anyway.

 

A roadster sailing over Deers Leap would have been more fun, Eh!

 

Also, how about 4 Mikuni 50mm PHH's? They are a little small in stock form, but there are bigger custom chokes available. I worked a lot on a buddies Lotus Super 7 that had a pair on a twin cam Toyota, that thing was the scourge of the local autocrossers...