Three 2 Barrel Carbs to 4 Barrel Intake Adapter
Three 2 Barrel Carbs to 4 Barrel Intake Adapter
Speedway Motors

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#1352003

Three 2 Barrel Carbs to 4 Barrel Intake Adapter

  • Allows you to put three 2 barrel carbs on a 4 barrel intake
  • Available to accept either the small base Rochester or 3 bolt Stromberg, Ford or Holley carbs
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Type:

3-Bolt to 4 Barrel

4-Bolt to 4 Barrel

$159.99

/each

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Product Summary

Universal Fit, 2-Barrel 3-Bolt Carburetor Flange Type

  • Allows you to put three 2 barrel carbs on a 4 barrel intake
  • Available to accept either the small base Rochester or 3 bolt Stromberg, Ford or Holley carbs
See more details

Key Specs

MFG. Part #1352003
BrandSpeedway Motors
Carburetor Flange Type2-Barrel 3-Bolt
Carburetor Barrels3 x 2-Barrel
Carburetor QuantityThree
See more specs

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Speedway Motors 1352003 Details

Want the race-ready looks of a tri-power setup but don't want to buy a new manifold?  Adapter that allows you to put three two barrel carbs on a four barrel intake. Accepts vintage 3-bolt Stromberg, Ford, and Holley carbs as well as the Demon 98 and Speedway 9 Super 7.

Use linkage kit 135-6714 with Demon 98.

Use linkage kit 135-6715 with others.

Item Details

3-bolt carbs to 4bbl intake

Specs

  •   4 barrel bolt pattern is 5-1/8” side to side and 5-5/8” front to rear
  •   2 barrel bolt pattern is 3-1/4” side to side by 1-7/8” front to rear
  •   2-3/16” tall bottom to top without the gaskets
  •   Upper 3 x 2 dimension is 4” wide by 13-11/16” long

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 Prop 65
CARB warning

Speedway Motors 1352003 Specifications

KEY SPECS
MFG. Part #1352003
BrandSpeedway Motors
Carburetor Flange Type2-Barrel 3-Bolt
Carburetor Barrels3 x 2-Barrel
Carburetor QuantityThree

Ratings & Reviews

4.4

5 Reviews

Overall Assessment

Customers applaud the product for its tri power and easy installation. Despite some minor issues related to the roughness of machined surfaces and the ensuing need for some elbow grease, the product is well-received for its practicality and good design. Some customers even innovatively used vaseline to manage potential vacuum leaks. While some express a wish for machining quality improvement, the product is mostly lauded for its smooth operation and superior performance as compared to other brands.

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4.4

5 reviews

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I will buy these product again for future project

5.0

2 years ago

Leslie

Pueblo Colorado

Verified

Using on blown flathead. Finnish is acceptable for the price. A few minutes with good draw file on mating surfaces is all that was required.

Would Recommend

Super cool

5.0

3 years ago

DC

Nibley ut

Verified

Easy installation great Tri power

Would Recommend

Pleasantly surprised

4.0

10 years ago

Ranchrods

Edmonton Alberta Canada

Verified

Great casting, smooth, well made. The mating surfaces look like they were "smoothed" with a 40 grit belt sander but otherwise a fantastic little adapter. Little elbow grease and you are in business, it will need to be washed upon receipt as there is casting sand everywhere

Would Recommend

There is room for improvement

4.0

11 years ago

John3127t

Sagle idaho

The machined surfaces are rough at the 4 barrel part that connects to the old 4 barrel manifold. it can cause vacuum leaks, if you use dry gaskets. My old Edelbrock, 4 barrel manifold has a much better machined surface, than the Vintage speed manifold. I used plain old vasaline on the gaskets to solve this problem. So far it seems to work ok.

Would Recommend

nice part but low machining quality

4.0

11 years ago

speedsquad

Vermilion, oh

Verified

This manifold adapter is a great idea with a good design, however, the quality of the machine surfaces is lacking.

Would Recommend

Showing 5 of 5 reviews

Questions & Answers

6 Questions • 6 Answers

Can i used is on a 177 blower

by Richard

• 7 years ago

1 answer

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Can this be redrilled and tapped for Rochesters

by tooln

• 9 years ago

1 answer

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Is there room for hei distributor on my sbc 327?

by Rodz

• 13 years ago

1 answer

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do you have any of the deminsions of this adaptor? height center to center on the carbs overall length?

by pat d

• 15 years ago

1 answer

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will this set up fit on a buick, 1970 455 4bbl intake?

by autophile

• 15 years ago

1 answer

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Will this adapter fit a Ford 292 Y Block intake for a 4 barrel.

by None

• 15 years ago

1 answer

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