ATI Performance Products 917278 - Aluminum LS1/LS2/LS3 6.780 In. SFI Harmonic Damper

• Contains 40 durometer rubber. Not for full race engines. Specify 66 rubber or call • Requires shorter serpentine belt. Goodyear #4060785 for accessories and #4040405 for AC. • CTS-V is 10% UD - Use Duralast Pt # 375K4 for AC pulley and Gates Pt # K060806, 6 rib for accessory drive The patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance engines.