Intake manifold for ‘59 transition Sprint Veloce - Alfa Romeo Bulletin Board & Forums
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post #1 of 27 (permalink) Old 06-02-2019, 10:10 PM Thread Starter
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Intake manifold and 40DCOE2 for 59 transition Sprint Veloce

Advice needed please:

We are in the process of building a 1300 Veloce spec engine for a 59 transition Sprint with a 1315 101 block and matching head.
Can anyone please tell us what the details of the correct intake manifold would have been to go with the 40DCOE2 carbs?

And, if anyone has one for sale please let me know!

Thank you

Jannes
'64 Giulia 1600 Ti, '66 Giulia Sprint GT Veloce, '70 1750 GTV

Last edited by VeloceRosso; 06-13-2019 at 02:17 PM.
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post #2 of 27 (permalink) Old 06-03-2019, 06:23 AM
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Veloce intake manifold

Howzit Jannes

The correct Veloce spec intake manifold for a 101 pattern 1300 engine is an all aluminium one with the tapered top tube.... unlikely that you will find one in a hurry, it took me years to find mine & they are never cheap

Just use a standard early 1300/1600 intake manifold for a 105 Sprint GT or GT Junior - cheap & plentiful in comparison. The end is hidden under the Veloce air can anyway, so you won't really see the difference.

Groete
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post #3 of 27 (permalink) Old 06-03-2019, 09:46 AM
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Correct Webers are early 40DCOE2 large top with Sn under 1000 and 7mm progression hole covers. These will be impossible to find. However, 40DCOE2 large top Webers were used through 65 on 101 spider Veloce's, and before that with the 1300's and transition cars. Somewhere I've a picture of a very early transition car 40DCOE Weber with the 7mm progression hole covers. Here they are, #51 and #451 and #514. You won't find these anymore and if you do, big $!
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post #4 of 27 (permalink) Old 06-03-2019, 10:53 AM
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Could your explain what you mean by "Large Top"? Thanks
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post #5 of 27 (permalink) Old 06-03-2019, 11:49 AM
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Did we do this before? The top of early DCOE's is a different shape than the top of later DCOE's.
Originally there were drilled passages to create a vacuum and eliminate non existent air leaks at the ball bearings. This was because the prototype DCOE's had bushings where the shaft end ball bearings later appeared. The result was that very few production DCOE's had functional drill passages, but still, until moulds were replaced, they used the large top configuration. In the mid-late '60's the moulds were replaced, and all DCOE production became small-top variants.
Below is a SMALL top gasket on a LARGE top top. The pen points to areas of the large top different from the small top version. The final photo shows the passages cast into a large top body, covered by this top, but NOT a small top.
Still confused? Send me an e-mail and I'll send lots of comparative photos.
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post #6 of 27 (permalink) Old 06-03-2019, 12:18 PM
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Thanks, that makes it clear . sorry if I missed it when you previously covered it.
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post #7 of 27 (permalink) Old 06-03-2019, 05:44 PM Thread Starter
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Thank you very much Greig. Exactly what I've been looking for. Do you perhaps have a photo of what it looks like from the other side?

I see that the likes of OKP and ClassicAlfa are selling reproductions which certainly are not cheap either.

Jannes
'64 Giulia 1600 Ti, '66 Giulia Sprint GT Veloce, '70 1750 GTV
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post #8 of 27 (permalink) Old 06-03-2019, 05:47 PM Thread Starter
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Quote:
Originally Posted by Gordon Raymond View Post
Correct Webers are early 40DCOE2 large top with Sn under 1000 and 7mm progression hole covers. These will be impossible to find. However, 40DCOE2 large top Webers were used through 65 on 101 spider Veloce's, and before that with the 1300's and transition cars.
Very interesting, thank you Gordon.

Here is a picture of one of the 40DCOE2's that we've managed to find.
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Jannes
'64 Giulia 1600 Ti, '66 Giulia Sprint GT Veloce, '70 1750 GTV
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post #9 of 27 (permalink) Old 06-04-2019, 07:39 AM
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You will find that the old Italian 40DCOE2 Webers are nice to work with. Eye candy of just restored pair for a '65 Veloce. They needed a lot of work, but are good for another 54 years.
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post #10 of 27 (permalink) Old 06-04-2019, 10:54 AM
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101 Veloce Intake manifold

Hi Jannes

This is the front of the 101 Veloce tapered tube manifold

Groete
Greig
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post #11 of 27 (permalink) Old 06-04-2019, 11:01 AM
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750 Veloce intake manifold

By way of comparison & for reference, this is the 750 Veloce intake manifold with the separate water rail & the mount angles to take the early DC03 carburettors

This is a completely different animal to the later 101 version, nothing is interchangeable excepting the little braided copper earth strap & the temperature sensor

G
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post #12 of 27 (permalink) Old 06-05-2019, 06:04 PM
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Here is another shot of a manifold for 40DCOE2 on 101's
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post #13 of 27 (permalink) Old 06-05-2019, 11:53 PM
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Have just been going through the same process as you with my '61 Spider Normale which has just arrived in the country (NZ). lucky for us it turned out this car had been transplanted with an earlier 1960 veloce engine, albeit without the correct intake and a "non alfa" single carb. Managed to track down an early 105 intake manifold out of Australia, and just now purchased a matching set of Weber 40 DCOE/2 carbs out of the USA (for approx. NZD $950 - $600 USD) which was a great find. now the fun starts trying to track down correct Air plenum and air filter housing.... worst case these can be purchased brand new, but very pricey! if anyone knows where either of these items can be tracked down (in any condition) that would be fantastic
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post #14 of 27 (permalink) Old 06-06-2019, 07:17 AM
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The parts catalogs list:
101-1300 Veloce as 101.06.01.060.00 (correct for your 1959 Veloce)
101-1600 SS and first 300 Spider Veloce as 101.21.01.060.00
101-1600 Spider Veloce after above as 101.21.01.060.01 . change to screw in thermostat

The drawings for the first two versions look the same. Anybody know what the difference is?
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post #15 of 27 (permalink) Old 06-06-2019, 02:08 PM Thread Starter
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Thank you @AlfistiSA and @Jdtorreride

Can you please tell me if there are any markings on this correct intake?
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Jannes
'64 Giulia 1600 Ti, '66 Giulia Sprint GT Veloce, '70 1750 GTV
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