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Product Summary

Universal Fit, 6.25" Overall Length, Hardware Included

  • 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)

Key Specs

MFG. Part #54564940
Overall Length6.25"
Overall Width5.75"
Overall Thickness1.00"
Inside Length3.50"

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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 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.

Specifications

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