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
Universal Rochester 2-Jet 2G Tri-Power 3x2 Carb Kit w/o Linkage Speedway Motors
Universal Rochester 2-Jet 2G Tri-Power 3x2 Carb Kit w/o Linkage
Sku # 91011589
Mfr. Part # 91011589
Condition
New
Brand
Speedway Motors
Sold
Each
Details
Info

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

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)
Charts

(PDF)

(PDF)

Specs
Material Type
Aluminum
Sold in Quantity
Kit
Finish
Natural
Bolt Hole Pattern
3-1/4" x 1-7/8"
Gasket(s) Included
Yes
Shaft Diameter
.31
Bore Size
1.44
MFG. Part #
91011589
Notes
Center carb jet is .056, end carb jets are .055.
Reviews

Great quality and prompt service. Would definitely buy again

Rated
Product Rating
by Tom on March 17, 2021

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

Pros: Great shopping at Speedway!

Yes, I recommend this product.

yes

Rated
Product Rating
by Professor on March 06, 2018

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

Yes, I recommend this product.

I would recommend this product

Rated
Product Rating
by Vicsdad on December 20, 2015

Summary: 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.

Cons: Use Their Linkage

Pros: Performs As Stated Very Simple To Work With

Yes, I recommend this product.

Complete ,great kit easy install

Rated
Product Rating
by Lecraig58 on April 03, 2015

Summary: 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

Cons: None

Pros: everything i needed

Yes, I recommend this product.

Puts some simplicity to tri carbs

Rated
Product Rating
by Junkyardkid on March 17, 2015

Summary: 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.

Yes, I recommend this product.

Related Items / Suggested Parts
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.