NOTE: Check for interference with water pump casting & bolt and modify as shown below.
NOTE: If you are interested in a custom CNC, aluminum billet, 20% underdrive pulley for the ATI Damper, please contact us & we will provide you with information on where to buy. Looks & fits just like the ATI pulley.
Posted by John Heiser on 13th Nov 2018
In Addition to providing water pump clearance I found that the damper hub required honing. As received the hub was under sized by 0.0006 inch.
You will also require T40 Plus bit.
Jerrys Gaskets Note:
Each application should be accurately measured for fitment before installation. Crankshaft size may vary in accordance with manufacturing tolerances.