Product Summary

Universal Fit, 5.160" x 5.625" Bolt Hole Pattern

  • High-tech carb spacer straightens out and increases air velocity into intake manifold
  • 1" thick and standard 4150 bolt pattern
  • Fits 4 barrel 4150 Holley carburetors
  • 5.160" x 5.625" Bolt hole pattern
  • Universal fit carburetor adapter

Key Specs

MFG. Part #1351958
BrandSpeedway Motors

Need To Know

Free Shipping on Orders Over $149

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy


This high-tech carb spacer straightens out and increases air velocity into the intake manifold.

  • 1 Inch thick
  • Fits 4 barrel 4150 Holley carburetors
  • Billet aluminum

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.


MFG. Part #1351958
BrandSpeedway Motors
Bolt Hole Pattern5.160" x 5.625"
Gasket(s) IncludedNo
Hardware IncludedNo
Material TypeAluminum
Sold in QuantityEach
Carburetor Flange Type4-Barrel Square Bore