For the supercharged LT4 engine application found in the C7 Z06 Corvette, ATI offers 5, 10 and 15 percent overdrive pulleys. The 15 percent, 8-groove pulley that fits to the Z06 damper (PN 917315), adds 2.3 psi to the stock application for 50 more horsepower at the tire. The 5 and 10 percent pulleys are designed for higher displacement aftermarket supercharger upgrades where an overdrive pulley less than 15 percent is desired. If a customer is looking to add an ATI damper/pulley to increase durability without increasing boost, the 5 percent pulley is recommended.
The patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines.
Eliminates torsional crankshaft vibrations
Exceeds SFI 18.1 specs
Black zinc chromate finished
Tunable, rebuildable, and extremely efficient at ALL RPM
Laser engraved timing marks
ATI Part # - 917315
Includes crankshaft bolt. Designed for use on dry sump engines. Requires supercharger pulley, sold separately.
