ATI Performance Super Dampers

ATI Damper Systems for LT4 (ZL1 / CTS-V / Blackwing)

From Proven Performance… to 1,000+ HP Insurance Not every build needs the same solution.

A 700whp street car and a 1,200+whp drag car may share the same engine platform—but they live in completely different worlds when it comes to load, shock, and reliability demands.

That’s why Griffin Motorsports offers two purpose-built ATI damper configurations, so you can choose the right level of protection for your build.

OPTION 1: STANDARD ATI DAMPER SYSTEM (Up to ~1,000 WHP) #918856

Proven. Reliable. Time-Tested.

Built around the trusted ATI Super Damper platform, this configuration is ideal for the majority of LT4 builds. This unit not only kills the dangerous harmonic vibrations, but it saves you an incredible 6 pounds at the same time!

ATI Super Damper (Wet Sump Configuration) #918856

• Designed specifically for 2017–2024 Camaro ZL1 and LT4 platforms

• Excellent harmonic control and crankshaft protection

• Proven performance across thousands of builds

3-Bolt Lower Pulley Interface

• Factory-style configuration

• Reliable when properly installed and maintained

• Ideal for street cars and moderate high-performance setups

Optional ARP Hardware Upgrades

For customers who want additional insurance:

• Upgraded ARP crank bolt (recommended)

• Upgraded ARP lower pulley bolts (recommended)

Recommended For:

• Street and dual-purpose builds

• 600–1,000 WHP combinations

• Moderate boost and pulley setups

• Customers wanting proven performance with OEM-style simplicity

OPTION 2: “MAC DADDY” 6-BOLT ATI DAMPER SYSTEM (1,000+ WHP)

Built for the Edge. Designed to Survive It.

Once you cross into four-digit horsepower, you’re no longer dealing with “normal” loads. You’re dealing with:

• Violent torque spikes

• Belt shock and harmonics

• Repeated stress cycles that expose weak links

This is why we have seen so many higher HP cars that ruin there track day (or worse) when they shear off the standard 3 lower pulley bolts, even when using ATI’s hardened bub.

What Makes This Solution Different;

Upgraded ATI Hardened Hub (Dual Keyway) #916032H2

• Heat-treated for extreme strength

• Dual keyway design for improved load transfer

• Reduced risk of hub distortion under high torque

Griffin Motorsports Exclusive 6-Bolt Conversion

• Doubles fastener count (3 → 6 bolts)

• Dramatically improves load distribution

• Reduces stress per bolt under dynamic conditions

• Helps prevent joint movement and fatigue

ARP Lower Pulley Hardware (Standard with hardended hub)

• Premium fasteners included with every kit

• 20% more thread enguagement for better clamp load under extreme stress

• 60% great shear resistance due to improved alloy and larger smooth shanks.

Compared with a fully threaded 3/8-inch pulley bolt, our upgraded ARP hardware places the shear load on a full-diameter smooth shank instead of the thread root, providing roughly 40% more shear cross-section and materially improved fatigue resistance under extreme torque and shock loading.

Recommended For:

• 1,000–1,400+ WHP builds

• Drag racing applications on sticky tires

• Aggressive dyno testing environments

• 20+ PSI of boost / high torque LT4 combinations

• Builders / Racers who want maximum reliability and peace of mind

WHY UPGRADE?

Because shearing your pulley bolts can be simply catastrophic.

Once a pulley joint starts to move, the bolts stop acting like clamps…
and start acting like shear pins. That’s when failures cascade—and damage gets expensive.

The 6-bolt system is designed to prevent that from ever starting.

THE GRIFFIN MOTORSPORTS APPROACH

We don’t just sell parts—we solve problems before they happen.

Whether you’re building a street car or a 1,400+whp monster,
we’ve created a solution that matches your level of performance—and your level of risk.