Product Summary

Carbureted Fuel System Type, Two Carburetor Quantity

  • Accepts 3-bolt carbs
  • 4 3/4" carb centers
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Key Specs

MFG. Part #1090
BrandOffenhauser
Intake Manifold TypeSingle Plane
Carburetor Flange Type2-Barrel 3-Bolt
Material TypeAluminum
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Need To Know

Quick and Easy Returns

Return Policy

Offenhauser 1090 Details

Said to be its most popular flathead intake, Offenhauser’s 2x2 Regular intake has closely spaced carbs that will clear the stock generator. The Offy regular dual intake accepts two 3-bolt carbs. Great addition to a street oriented engine. Has 4-3/4" carb centers.

Has room for generator in stock location, but generally requires an offset bracket. If using a GM alternator, use our chrome 916-67909 or plain 916-67910 bracket.

  • Carb Centers:  4-3/4"
  • For 1932-48 Ford Flatheads

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Offenhauser 1090 Specifications

KEY SPECS
MFG. Part #1090
BrandOffenhauser
Intake Manifold TypeSingle Plane
Carburetor Flange Type2-Barrel 3-Bolt
Material TypeAluminum
GENERAL
Fuel System TypeCarbureted
Carburetor QuantityTwo
FinishNatural
EGRNo
Intake Section IncludedComplete
Oil Filler Tube Hole Diameter1.38"
Draft Tube Hole Diameter1.25"
Sold in QuantityEach

Ratings & Reviews

4.5

11 Reviews

Overall Assessment

Customers consistently praise the product for enhancing the aesthetic appeal of their vehicles, particularly flatheads and hot rods, with its top-notch finish and clean look. Our manifold's fit with a Powermaster alternator setup and dual Stromberg 97's sets our product apart. Buyers appreciate the setback feature of the manifold which permits the showcase of a chrome alternator without offset brackets. Moreover, its reliable performance is consistently highlighted. A unique advantage of our manifold over competitors is that it works with the original generator, a feature unoffered by other vendors. Some customers experienced issues with product quality, particularly with threading, however, this appears to be the exception rather than the rule. Despite a few exceptions, overall reviews indicate a satisfactory product performance.

4.4

11 reviews

5

8

4

2

3

0

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1

1

Most Liked Positive Review

5.0

YES

I BOUGHT THIS OFFY DUEL CARB MANIFOLD AND HAVE A DRESSED UP FORD FLATHEAD IN MY 35 FOR CABRIOLET .. I LOVE THE SETBACK FEATURE OF THIS MANIFOLD .. IT ALLOWS ME TO SHOW A NICE CHROME ALT IN FRONT WITHOUT THOSE OFFSET BRACKETS. HERS A COOL SECRET . I WANTED MY FLATHEAD TO RUN SMOOTH WITH DUEL HAVING TO ADJUST CARBS AND NOT HAVE TO WORRY ABOUT ADJUSTING AND KEEPING THE DUEL CARBS , IN SYNC .. THIS SETS THE CARBS BACK SO I PLATED THE BACK CARB OFF AND BLOCKED THE GAS LINE ,,, RUNS BEAUTIFUL ON ONE CARB AND NOT TROUBLE FOR FIVE YEARS SO FAR .

Most Liked Negative Review

1.0

Worst quality ever

the first one I received was in Japanese Newspaper and looked as if a two-year-old mad it. All the threads were chased and some I was going to have to drill out and replace with hell coils. I ended up calling them for a new one and the other one was of just as bad quality. I tried to install the stud for the generator/fan assembly and half way through trying to ins all it the stud ripped out 5 threads. DO NOT buy if you plan on having a lot of headaches and wasting a lot of time trying to fix something thats just gonna break next time you use it. I want my money back

Filter by Ratings

Yes

4.0

2 years ago

Dennis

Washington

Verified

Not yet installed

Would Recommend

perfekt

5.0

5 years ago

Jarle

fredrikstad Norway

Verified

buteful finish

Would Recommend

Very clean looking manifold

5.0

6 years ago

Ray

Kent, Washington

Verified

Made my 1940 flathead look like a real hot rod

Would Recommend

Yes, I would buy and continue to buy this product

5.0

6 years ago

Spike

Melbourne Australia

Verified

Used the manifold with a Powermaster alternator set up and dual Stromberg 97's excellent finish on top of my stroker engine

Would Recommend

I would buy this product again.

5.0

6 years ago

None

West Baden, Indiana

Verified

Product is what I wanted. Sent right away.

Would Recommend

Yes, if I build another Ford flathead engine.

5.0

7 years ago

Steve Sokol

Pella, IA

Verified

Great looking Offy dual intake...it will work well with my traditional 1929 Ford Roadster hot rod project.

Would Recommend

YES

5.0

7 years ago

SETH

TRUMBULL CONN.

Verified

I BOUGHT THIS OFFY DUEL CARB MANIFOLD AND HAVE A DRESSED UP FORD FLATHEAD IN MY 35 FOR CABRIOLET .. I LOVE THE SETBACK FEATURE OF THIS MANIFOLD .. IT ALLOWS ME TO SHOW A NICE CHROME ALT IN FRONT WITHOUT THOSE OFFSET BRACKETS. HERS A COOL SECRET . I WANTED MY FLATHEAD TO RUN SMOOTH WITH DUEL HAVING TO ADJUST CARBS AND NOT HAVE TO WORRY ABOUT ADJUSTING AND KEEPING THE DUEL CARBS , IN SYNC .. THIS SETS THE CARBS BACK SO I PLATED THE BACK CARB OFF AND BLOCKED THE GAS LINE ,,, RUNS BEAUTIFUL ON ONE CARB AND NOT TROUBLE FOR FIVE YEARS SO FAR .

Top Offenhauser !!

5.0

8 years ago

Rat Rod Andreas

Germany

Verified

Top good work !!

Would Recommend

The Offenhauser dual intake was to accept orginal generator

5.0

10 years ago

Les

Belfast,Maine

Verified

This site needs to be made more user freindly as I started to put in comments twice above and finally found this section. As I started to state .The dual Offenhauser intake was not offered by other vendors that would allow the use of the orginal genarator product was great , good service.

Would Recommend

Worst quality ever

1.0

10 years ago

Kyle

Rhode Island

Verified

the first one I received was in Japanese Newspaper and looked as if a two-year-old mad it. All the threads were chased and some I was going to have to drill out and replace with hell coils. I ended up calling them for a new one and the other one was of just as bad quality. I tried to install the stud for the generator/fan assembly and half way through trying to ins all it the stud ripped out 5 threads. DO NOT buy if you plan on having a lot of headaches and wasting a lot of time trying to fix something thats just gonna break next time you use it. I want my money back

Would Not Recommend

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Showing 10 of 11 reviews

Questions & Answers

5 Questions • 6 Answers

Will this intake work with dual Holley 94 carburetors. I once read Offenhausers were built for 97s and Edelbrock for both 97 and 94s.

by FB

• 8 years ago

2 answers

What length fuel pump shaft would I use with this intake on a stock 47 flathead

by Tattookyle

• 10 years ago

1 answer

vacuum port on the offenhauser 1090 Is there a vac. port anywhere on this intake for the vacuum wipers or for vac advance for a distributor? if not what can I do?....

by fordflatheadeddie1920

• 11 years ago

1 answer

Can this manifold be used on a 1951 engine? I have no need to retain the stock road draft tube and use an electric fuel pump.

by NoValveCovers

• 12 years ago

1 answer

I want to use this set up with a 12V alternator mounted in its original position. Does Speedway have a package with their Speedy Carbs?

by ToddF

• 15 years ago

1 answer

5 of 5 questions shown

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Customer Impersonation Script