Over the years we have had a few enquiries about making a new Stromberg 81, mainly for Ford flathead 4-banger lovers. So we tried a little project recently to replicate 81 style cfm flow and performance by sleeving down a 97. It worked pretty good with a strong signal and correct flow, so we are moving the idea to CAD next. We’re not sure a new bowl casting is a certainty, but we can make special size venturi inserts, coupled with a new base.
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- Smaller 81 inserts
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- 81 inserts from above
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- Sleeved base for tests only
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- Base from above
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- Showing idle holes
Thanks for doing this. I look forward to using 81’s in a multiple carb application. How is the process going? Thanks
Hi Terry. As of early Jan we have the bases all ready to go and we are making the venturi inserts and the pieces to reduce the accelerator pump bores this month so we should be ready for launch after we return from the GNRS.
Hi Terry, We have 81s in stock and you were first on the list. Your email address came back unknown so please contact us at sales@stromberg-97.com if you would like to move forward. Thanks.
I need 2 of them for my Model B engine!
When will they be available?
Hi Justin,
We are making the last pieces next week. The sleeves for the accelerator pump. So we should have them ready for sale in March, we hope. Thanks for your interest. We will post up again once we get them tested and in stock.
Are the 81’s available ? What’s the CFM on the reworked model ?
Dave, As far as we know, the original 81s flowed a reported 125cfm maximum. We tested the hand built prototypes at around 116cfm and we are very close now to testing the new finished pieces. We’ll report back as soon as we know. Thanks.
Are the “81’s” available yet? I need two.
Hi Slade, We are very close. Just waiting on new 81 size gaskets and throttle plates. We will announce it as soon as we can ship, Thanks!
Thanks for the update – I would like two – put me on the list and I will buy!
Thanks! You’re on the list!
I’d like to buy one 81. Does it have the same base bolt pattern as the 97?
Hi Martin, They are not quite ready for sale yet. Just waiting on some new parts. We will email you once they are ready, Thanks! And yes it has the same bolt pattern as the 97.
Yay! =)
Do you have a ballpark price yet?
Sorry not yet, but they will be same as 97 plus a little more – for the inserts etc. Thanks.
Put me on the list for 2!
Thanks Mark. Will do!
hi just wondering if the 81s are ready yet I need 2 for the model A banger but will be doing 3 on a 270 hemi? if they are ready what is the new part number so I can contact a dealer to order?
best regards
Hi Curt, Very close now. Just waiting on new 81 size gaskets. We will announce the new 81 as soon as we get then in stock at our warehouse.
Please keep me informed.
Will do, thanks Jim.
Hi Clive, please put me on the list for 2 of them. Thanks Andreas
Thanks Andreas! We have taken down your email details. They are very close now
Please put me on the list too.
Thanks. We will let everyone know soon.
Please let me know when there available.
Hi Christian, Will do.. Thanks.
I am also on board for 2. Very interested. Please keep me updated. Been watching this unfold for a while. Than you.
Thanks Phil, I will let you know. We should be shipping very soon.
Please email me with availability for new 81 conversion for 97 . Need 2 please. Thanks Oren
Available any day now, Oren. We are emailing you today. Thanks.
Soo…can we get it now?
Yes, we are just building a quantity now to start shipping. We do have a small waiting list but you are now on it! We will email as soon as we can. Thanks.
I am still in! I emailed you Oct 20th.
I’m in for 2 and hope I’m on the list as you mentioned in last response!
Phil
Yes Phil, We are just getting some decent stock built then we will email everyone. We just want to be sure everyone knows exactly what they are getting. For example, they still say 97 on the side. We will also share Charlie Yapp’s (SOSS) very positive road test results. Thanks.
Hello,
I would like to get three. Can you please put me on the list?
Thanks in advance
Phil
Thanks Phil. We will email back soon when we can supply you. Should be very soon. Thanks.
Have you been able to achieve a closer CFM flow rate to the original 81’s yet.
I’d like to be put on the list for 2 of the carbs.
Thanks Ben
Hi Ben, Whatever the claimed figures were (and I have never seen anything from Ford or Stromberg about carburetor cfm), we tested an old one ourselves on a very reputable modern flow bench and got 109.6 cfm at 1.5in HG vacuum. Our new ones made a maximum 16 on the same bench. We’ve dded your name to the list. We are just working down the list now. Thanks.
Thanks for adding me to the list.
Ben
Will 81 throttle bodies be available for separate purchase
Hi Bob, Yes, though our new 81 bases are designed to take the sleeved 97 venturis in the top, so when you fit a stock original 81 into the base it leaves a small step inside under the 81 venturi. It is all air-tight, of course, but we just need to make everyone aware of it as it will differ slightly from the original. It doesn’t affect the new 81 throttle plates either. Email us if you need one – sales@stromberg-97.com
what is your price for a complete throttle body
Thanks Bob. We’re looking at $149.00 for a complete new throttle body with throttle shaft and plates, idle screws, kicker, gaskets. It’s ready to bolt on.
I’d like to get one of these 81 setups, they are available now correct? Also what is the price?
Hi Matt, Thanks for your enquiry. The new 81 is $475.00. Email us if you need to order one – sales@stromberg-97.com – thanks!
Do you now have stock of the new 81 – I require two for my Ford B Speedster – what price to Australia ?
Hi Noel, Yes we do. Please contact Mike Palazzo at Rocket Industries in Huntingwood, NSW, our distributor for Australia. He can help you out. Thanks.
Can I buy just the Venturis that slip on ? Don
Hi Don, We will email you direct too. You can add the venturi inserts but it will not fix the fact that your base casting will still have bigger throttle bores. So the incoming airflow will be a lot more turbulent. You will also need to reduce the accelerator pump bore for a smaller 81 pump. Thanks.