Moroso 1" Billet Carburetor Spacer - Fits Holley 4150/4160 Bolt Pattern - 4-Hole Plenum Design w/ 1.750" Diameter Bores Oils Carrying on a tradition of

Carrying on a tradition of durability and dependability

multiply your bore size by the ring end gap factor listed on the chart (i

The paper towel rack is small enough to mount just about anywhere for easy access

Storage bag included

Moroso 1" Billet Carburetor Spacer - Fits Holley 4150/4160 Bolt Pattern - 4-Hole Plenum Design w/ 1.750" Diameter Bores Oils Carrying on a tradition ofExtends length of intake mixture column to improve air fuel distribution CNC machined from 6061 T6 billet aluminum to extremely accurate specifications Billet aluminum eliminates porosity and improves engine appearance Available with 4150 4160 and 4500 Series Holley(R) bolt patterns to fit a variety of carburetors 4150 4160 Series Spacers available in 1 2", 1" and 2" thicknesses with open plenum and 4 hole designs to suit tuning requirements; 4500