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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

Key Specs

MFG. Part #91011589
BrandSpeedway 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

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)

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.

Speedway Motors 91011589 Specifications

KEY SPECS
MFG. Part #91011589
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.