Product Summary

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

  • This kit includes an adjustable progressive linkage kit
  • Bases are small pattern 1-7/16" throttle bores
  • Mount stud pattern is 1-7/8" x 3-1/4"
  • Includes two rebuilt bases for the secondary carbs, gaskets, jets, power valve and modified piston, idle tubes, plugs, hardware and new primary throttle shaft and butterflies
  • Set up a Tri Power for a fraction of the cost

Comes as a Kit

See more details

Key Specs

MFG. Part #91011569
BrandSpeedway Motors
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91011569 Details

There's nothing cooler than a TriPower on your small block Chevy, 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 3x2 kit also includes an adjustable progressive linkage kit for use on SBC intake manifolds with 5-1/2" carb center spacing.

  • Converts 3 "small base" Rochester 2G/2GC main bodies into progressive Tri-Power
  • New base plates for secondary outboard carbs
  • Extended throttle shaft and butterfiles for primary center carb
  • Includes necessary plugs and hardware to recalibrate circuits
  • Includes adjustable mechanical progressive linkage
  • Linkage works with 3x2 intakes that have 5-1/2" carb centers

  

Charts

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)

Speedway Motors 91011569 Specifications

KEY SPECS
MFG. Part #91011569
BrandSpeedway Motors
GENERAL
Bore Size1.44"
Shaft Diameter.31"
Bolt Hole Pattern3-1/4" x 1-7/8"
Gasket(s) IncludedYes
Material TypeAluminum
FinishNatural
Sold in QuantityKit
NotesCenter carb jet is .056, end carb jets are .055.

Ratings & Reviews

4.7

24 Reviews

Overall Assessment

Customers widely praised the product for its high quality, practicality, and complete kit for easy carburetor rebuilding. They esteemed its role in improving their car's performance, ease of installation, and for helping turn old 2-barrel carburetors into a tri-power system. It is also appreciated for making tuning operations effortless and for the well-laid out instructions it comes with. Some customers suggested that extended parts and a comprehensive rebuild could enhance the product further. However, despite these minor suggestions, general sentiment is that this product offers excellent value and undeniable quality.

4.7

24 reviews

5

19

4

3

3

1

2

1

1

0

Most Liked Positive Review

5.0

That Three Deuce intake has been in the garage for 20 Years!

This kit takes the guesswork out of a 3x2 set-up at a great price! If you have a box of old carbs under the bench or in the stockroom, this kit is for you! I had carbs, but, not the correct bases - the kit is the cure for that, throttle plates are included. Put the carbs together like the instructions tell you and it's PLAYTIME!!!

Most Liked Negative Review

2.0

Alot of $ for jets and plugs!

Im still trying to justify the cost! Rebuild kits for 2G's are $16 and speedway secondary base plates are cheap also. Just block off power valves and chokes on secondary's and $70 for linkage a few $ for extended throttle shaft and your done for a fraction of the cost? All parts in this kit are quality and work very nice..But think it's over priced

Filter by Ratings

Great product

5.0

11 months ago

Bill

London Ky

Verified

Used kit on a chevy 348 engine

Would Recommend

Did the trick

4.0

a year ago

JJ @ Illustrations Automotive

Camano WA

Verified

On my tri-power rod

Would Recommend

3 Deuces

5.0

a year ago

JJ @ IllustrationsAutomotive

Camano WA

Verified

Rebuilt my tri-power This was the kit!

Would Recommend

I would buy this product again and recommend it to other peo

5.0

2 years ago

Rat Bastard

Milwaukee, Wisconsin

Verified

I am not very good at rebuild carburetors, but this was a breeze. The product is excellent very easy to work with.

Would Recommend

Great quality kit

5.0

3 years ago

Bob

Colorado

Verified

Still working on my project so I haven't had time to get the carbs built. Kit appears to be of great quality.

Would Recommend

Easy tri power

5.0

3 years ago

BHRS

Texas

Verified

Makes building a tri power with 2G carbs so easy!

Would Recommend

Carb kit was all there as shown.

5.0

5 years ago

Leo

Manitoba Canada

Verified

Was on my doorstep within 4 days

Would Recommend

Money well spent

5.0

6 years ago

John

Abington, PA

Verified

My car runs better than ever, now it is easy to tune the primary carb without having to fiddle with the secondaries.

Would Recommend

Great system!

5.0

6 years ago

John DiPrimio

Abington, PA

Verified

This set up made my car run better, more efficiently, and looks great.

Would Recommend

That Three Deuce intake has been in the garage for 20 Years!

5.0

6 years ago

Rocky

Cicero N.Y.

Verified

This kit takes the guesswork out of a 3x2 set-up at a great price! If you have a box of old carbs under the bench or in the stockroom, this kit is for you! I had carbs, but, not the correct bases - the kit is the cure for that, throttle plates are included. Put the carbs together like the instructions tell you and it's PLAYTIME!!!

Would Recommend

Load More Reviews

Showing 10 of 24 reviews

Questions & Answers

8 Questions • 12 Answers

I have this kit installed on my sbc and the center carb is fine but when the outside carbs start to open the engine sputters and stalls. Any suggestions?

by randal kramer

• 6 years ago

1 answer

I have a 283 with a Vintage Speed Tripower manifold adapter on top of a 4 barrel Edelbrock Performer manifold. I have a 2GC Rochester in the center and the front and and rear carb openings blocked off with metal plate and gasket. Runs good, no problems. Bought this kit and have modified the center carb as per instructions. It Runs but now will will not idle unless idle set screw is cranked in almost to its max opening the throttle plates and bypassing the carbs idle circuitry??

by jfmck_65

• 7 years ago

1 answer

Is anyone making a NEW primary Base plate with circuits for the 2gc ?

by Stan

• 10 years ago

1 answer

now that I'm searching ebay with many rochester carbs available,'if i find 3 carbs that have side fuel inlet and the bolt pattern is 3.250 X 1.875 center to center, i can assume they r 2G carbs.? is the most important features i should look for ? Thanx Tom

by tws63

• 10 years ago

1 answer

will 1-R2-2GC & 2-R2-2GV WORK WITH this kit

by redwolf

• 11 years ago

1 answer

Adjusting Progressive Linkage I purchased a 32 Ford with this progressive linkage. Where can I get the instructions for adjusting the linkage?

by BobbyFord

• 12 years ago

1 answer

What else do I need to have a complete running tri power setup? I have 3 junk yard side inlet 2G carbs. I have been reading the reviews and it sounds like I will need more parts to get this all up and going. What specifically do I need in conjunction with this kit to have a running, functional tri-power with progressive linkage? Thanks

by HotRodBen

• 13 years ago

2 answers

this might be an ignorant question, however since this is my first time with a tri power motor i have to ask. why does center carb not need base plate

by chico

• 13 years ago

4 answers

8 of 8 questions shown

Customer Impersonation Script