Moroso 64951 Moroso 4500 Carburetor Spacer - Open Plenum - 1in - Billet Aluminum

4500/4160 Carburetor Spacer, Billet 1" Thick, Open Plenum Design

• Extends length of intake mixture column to improve air/fuel distribution
• 6061-T6 billet aluminum
• Billet aluminum eliminates porosity and improves engine appearance
• 4500 Series Holley® bolt patterns to fit a variety of carburetors
• 4500 Series (Dominator) Spacer is 1" thick with open plenum
• Open designs increase plenum volume for improved high rpm power
• Gaskets are not included

*Not legal for sale or use on pollution-controlled vehicles