Spacer is designed to be used with an apple core type support and measures 1.240" O.D., .310" thick with a .380" I.D. hole. Most 75mm support spools measure 3.875" end to end, add the spacer for 4.185" which is spot on for 84mm wide blower belt and idler pulleys. Spacer is made from billet alum.
Perfect for Miner, BBC, SBC, Ford, 392/417 and Hemi idler brackets that use the apple core type support spacer.
Racer can choose alum. or black anodized finish from drop down menu.