AED Performance 6170 Holley Birchwood 1" Open Center Spacer

Asa Performance Verified independent store

→

AED Performance 1" Birchwood spacer for standard Holley bolt pattern offers increased torque and power output while providing a thermal barrier to help increase fuel density. This results in a better charge available for combustion as well as increased plenum volume. We also offer stud kits to match the spacer for simple installation. Show more