Product Summary

Universal Fit, 1.00" Overall Thickness, Plastic

  • Plastic spacer reduces heat conductivity 10 times greater than aluminum
  • Results in a denser, more powerful fuel charge to the manifold
  • Fits Holley 4150/4160 bolt pattern
  • IMCA approved for 602 & 604 Northern Sport Mods and Modifieds
  • Includes studs, nuts & washers (gaskets not included)
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Key Specs

MFG. Part #54564940
BrandSpeedway Motors
Carburetor Flange Type4-Barrel Square Bore
Overall Thickness1.00"
Material TypePlastic
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 54564940 Details

These open center carburetor spacers are designed to fit Holley 4150/4160 bolt pattern 4 barrel carbs. They are IMCA approved and are made to reduce heat conductivity for optimum performance.

  • Plastic spacer reduces heat conductivity 10 times greater than aluminum
  • Results in a denser, more powerful fuel charge to the manifold
  • Fits Holley 4150/4160 bolt pattern
  • IMCA approved for 602 & 604 Northern Sport Mods and Modifieds
  • Includes studs, nuts & washers (gaskets not included)

Item Details

Includes Studs, Nuts & Washers

CARB Warning

For race/ off road use only

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. 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 54564940 Specifications

KEY SPECS
MFG. Part #54564940
BrandSpeedway Motors
Carburetor Flange Type4-Barrel Square Bore
Overall Thickness1.00"
Material TypePlastic
GENERAL
Carburetor Spacer StyleOpen
Sold in QuantityEach
Overall Length6.25"
Overall Width5.75"
Inside Length3.50"
Bolt Hole Pattern5.10" x 5.60"
Gasket(s) IncludedNo
Hardware IncludedYes

Ratings & Reviews

4.8

11 Reviews

Overall Assessment

The product consistently performs well across various reviews, praised for its excellent fit and compatibility, notably with 350 cubic inch Chevy motors and Holly Sniper carburetors. Customers highlighted its practicality, due to its inclusive kit, save for gaskets, suggesting excellent usability. Recognized for its impressive heat resistance, it adds to the product's safety appeal. Furthermore, the quality and aesthetic appeal of the material is often commended. Overall, customers would buy it again, underlining the product's superiority over competitors.

4.8

11 reviews

5

9

4

2

3

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Filter by Ratings

Just what I needed

5.0

4 months ago

Jake

Peoria AZ

Verified

Was having issues with fuel starting to boil in fuel bowls after long drives. Installed this composite spacer and no longer have near the heat transfer issue from intake manifold to carb

Would Recommend

yes

5.0

11 months ago

horn

merced cal

Verified

i resale to crate using customers

Would Recommend

Absolutely

5.0

2 years ago

Dicster

Iowa

Verified

Fit good Just what I need

Would Recommend

yes

5.0

3 years ago

duck

virginia

Verified

works great on my 350 cubic inch chevy motor

Would Recommend

Fit nice

5.0

5 years ago

Ding

North platte Nebraska

Verified

Put under holly sniper

Would Recommend

Like the product

5.0

5 years ago

Ding

North Platte nebraska

Verified

Put it on under holly sniper

Carb Spacer

4.0

6 years ago

Fossil

Essexville, Michigan

Verified

Fit as intended

Would Recommend

Great heat sink

5.0

6 years ago

RON

Bartlett Tennessee

Verified

Keeps heat out of carb when hot starting.

Works good and comes with everything except gaskets

4.0

7 years ago

Brad

LasVegas Nevada

Verified

Only thing I would suggest is putting gaskets in with the kit

Would Recommend

nice product

5.0

8 years ago

Rubyann

Holland,MI

Verified

Have not had a chance to run it yet, but it looks great and a great price.

Would Recommend

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Showing 10 of 11 reviews

Questions & Answers

4 Questions4 Answers

what kind of plastic is this made of?

by Colt

7 years ago

1 answer

will this work with a 4412 holly on a 2181 edelbrock intake?

by Grey Fox

10 years ago

1 answer

will this fit a quadrajet on a dodge 360

by ramer

11 years ago

1 answer

will this fit under a edelbroc ,600 4 barrel??and a 600 holley ???

by suede48

14 years ago

1 answer

4 of 4 questions shown

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