Universal Rochester 2-Jet 2G Tri-Power 3x2 Carb Kit w/o Linkage

#91011589

Universal Rochester 2-Jet 2G Tri-Power 3x2 Carb Kit w/o Linkage

Name: Universal Rochester 2-Jet 2G Tri-Power 3x2 Carb Kit w/o Linkage
Brand: Speedway Motors
SKU: 91011589
Price: 360.99 USD
Availability: InStock
Rating: 4.2 (9 reviews)

9 Reviews

5 Questions

With this kit you can use three junkyard 2G small base style Rochester carbs and put together a three deuce set-up for a fraction of the cost
Converts 3 "small base" Rochester 2G/2GC main bodies into Tri-Power setup
Extended throttle shaft and butterfiles for primary center carb, new base plates for secondary outboard carbs, includes necessary plugs and hardware to recalibrate circuits

$360.99

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Product Summary

Universal Fit, 1.44" Bore Size, .31" Shaft Diameter

With this kit you can use three junkyard 2G small base style Rochester carbs and put together a three deuce set-up for a fraction of the cost
Converts 3 "small base" Rochester 2G/2GC main bodies into Tri-Power setup
Extended throttle shaft and butterfiles for primary center carb, new base plates for secondary outboard carbs, includes necessary plugs and hardware to recalibrate circuits
Center carb jet is .056, end carb jets are .055
Progressive throttle linkage sold separately with pt# 91011587

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Key Specs

MFG. Part #	91011589
Brand	Speedway Motors

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Speedway Motors 91011589 Details

There's nothing cooler than a 3x2 intake on a vintage Chevy/Pontiac/Oldsmobile/Cadillac/Buick V8 engine, but good carburetor cores are getting expensive and hard to find! With this kit you can use three junkyard 2G small base style Rochester carbs and put together a three deuce set-up for a fraction of the cost.

Kit includes two brand new throttle body base plates for the secondary carbs, gaskets, jets, power valve, modified piston, idle tubes, plugs, hardware, and new throttle shaft and butterflies for the primary carb. This kit does not include throttle linkage, allowing you to customize the application to your specific needs.

Converts 3 "small base" Rochester 2G/2GC main bodies into Tri-Power setup
New base plates for secondary outboard carbs
Extended throttle shaft and butterfiles for primary center carb
Includes necessary plugs and hardware to recalibrate circuits
Does not include linkage

Charts

910-11569 Instructions (PDF)

910-11569 Supplement (PDF)

Specs

Rochester 2G/2GC "small base" 2 barrel carburetor:

1-3/32" venturi (278 CFM @ 3.0" Hg pressure drop)
1-7/16" throttle bore diameter
1-7/8" x 3-1/4" base plate bolt pattern (to manifold)

Guides & Documents

Carburetor Base Plates Installation Instructions (91011589)

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.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Speedway Motors 91011589 Specifications

KEY SPECS
MFG. Part #	91011589
Brand	Speedway Motors

GENERAL
Bore Size	1.44"
Shaft Diameter	.31"
Bolt Hole Pattern	3-1/4" x 1-7/8"
Gasket(s) Included	Yes
Material Type	Aluminum
Finish	Natural
Sold in Quantity	Kit
Notes	Center carb jet is .056, end carb jets are .055.

Ratings & Reviews

4.2

9 Reviews

Overall Assessment

Customers value the product for its quality and practicality in setting up Tri Power carbs on different Chevy models. Notably, the kit is appreciated for assisting in transforming manifold and carbs into a Three Deuce setup. Some consider it a time-saving solution for their projects. However, the product's usability may require prior tripower experience due to challenges with sealing the end base plate butterflies completely. The linkage is stated to be difficult to set up correctly especially with an electric choke on the primary carb. Adding the linkage was recommended as otherwise, the setup may not function correctly. Despite some functional challenges, the product is considered a complete kit with all necessary components. It also acts as a tasteful addition to the vehicles, contributing to their aesthetic appeal.

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4.2

9 reviews

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Great for nostalgic build

4.0

a year ago

Thomas Rod Shop

Ohio

Verified

Will see if the carbs seal and make set adjustable on the Dyno.

Would Recommend

Rochester tripower carb kit

5.0

2 years ago

Keith

South Milwaukee, Wi.

Verified

Very satisfied with the Rochester carburator bases that I purchased from Speedway. My 34 Ford Street Rod with tripower has never run as good as it does now!

Would Recommend

I would definitely purchase this product again

5.0

4 years ago

"Charlie-6"

Rockford, IL.

Verified

Used this product to turn an aftermarket intake manifold and three Rochester 2G carbs purchased at a swap meet into a Three Deuce setup on my 1936 Chevy Coupe's 283 engine.

Would Recommend

Great quality and prompt service. Would definitely buy again

5.0

5 years ago

Tom

New Brunswick Canada

Verified

The kit I bought is going to save me time and trouble, setting up Tri Power carbs on my 66 Chevy 2.

Would Recommend

yes

5.0

8 years ago

Professor

Washington Iowa

Verified

all worked fine should include 2- needel and seat then would not have to buy carb kits

Would Recommend

Nice idea but wasnt able to make it work.

1.0

9 years ago

Wagonman

Iowa

Verified

The kit was very easy to assemble but I would not recommend this kit to someone unless they have some tripower experience. The end base plate butterflies do not seal completely and this causes a vacuum leak from the outside carbs and makes the tripower impossible to tune and idle. Also the idle metering tubes for the center carb are to small. Customer service sent another set of base plates for the secondary carbs but the butterflies in them were worse than the first set so I sent them back and talked to some old mechanics. Had to end up going old school and used what the GM mechanics did back in the 60's to get the butterflies to seal (DAG213). The linkage in the kit has cheap set screws that stripped out on the shafts, and the linkage is almost impossible to set up correctly if you are running an electric choke on the primary carb. Got so frustrated with the entire "TriPower" experience, I removed the it from my 32 Ford and installed a polished Edelbrock intake and 4 barrel carb and the car started up and ran on the first turn of the key. Now I have a very expensive tripower sitting on my shelf in my garage. At least it looks cool and is a conversation piece. They advertise this as a kit that can take junk yard 2G Rochesters and make them into a tripower. My Rochesters were all in great running condition before starting this project but myself and some very experienced engine people could not make this item work. Its a shame because it looked really cool on my 32 Ford Hiboy.

Would Not Recommend

I would recommend this product

5.0

10 years ago

Vicsdad

Fair Oake, CA

Verified

I should have gone from 5 stars 4 due to the linkage issue. Although the kit is sold with or without new linkage, don't purchase it without linkage. The cost is about $40 when purchased with the kit, but forget about using some other brand. The linkage sells separately for $90+ and it states that this linkage cannot be used on any other tri power set up. It's obvious their linkage must be used, so why sell it with or without linkage? They should at least indicate that purchasing the kit without the linkage is a big mistake! Having said that, I contacted Speedy regarding this issue and they were more than willing to work things out with me. I was impressed.

Would Recommend

Complete ,great kit easy install

5.0

11 years ago

Lecraig58

Mustang, OK, USA

Verified

Great and complete kit Had all the the pieces that I need to complete my project and it works great The person that took my order was very knowledgeable and courteous. Was very pleased

Would Recommend

Puts some simplicity to tri carbs

3.0

11 years ago

Junkyardkid

San Diego, CA, USA

Verified

I bought these because I had heard they were better than using the stock units. When I got them the throttle plates were no where close to being sealed. After a bunch of adjustment and using some lapping compound and some sanding I got them better but not perfect. But that's hot rodding.

Would Recommend

Showing 9 of 9 reviews

Questions & Answers

5 Questions • 5 Answers

Sort Questions

I purchased this item a coule of weeks back w/o linkage Thinking the linkage I already had would suffice, but it doesn't. Purchased with the kit, the linkage was approximately $40. I decided to order your linkage and the price is now over $90. Is this increase due to my not purchasing everything at once? I don't recall any info stating that other linkage was not compatible with this unit when I as ordering. I really liked the kit, but this is very disappointing . What gives? Rick

by Rick

• 10 years ago

1 answer

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What is the thickness of the butterflies, 3/64 or 5/64?

by gcpoland

• 11 years ago

1 answer

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The picture shows these bases with brass butterflies. Do they have brass or aluminum ones? I know the base itself is aluminum and it was my understanding that you could no longer get the butterflies in brass.

by gcpoland

• 11 years ago

1 answer

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can you please recommend fuel requirements for this set up, psi, gph, that kind of stuff. Thank you

by redwelter

• 12 years ago

1 answer

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Online states that the bases are 'rebuilt' while the catalog states that bases are 'new'. Which is correct? Thank you.

by 32guy

• 13 years ago

1 answer

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5 of 5 questions shown