ATI Damper 8.074in Steel Chevy Big Block w/ 2nd 1/4 Key 3 Ring 1Pc ATI917062K
Heavy-Duty 8.074 Steel Harmonic Damper with Dual Keyway for Chevy Big Block Engines
The ATI Super Damper (PN ATI917062K) is a high-performance 8.074-inch, 3-ring, steel harmonic balancer built to withstand the extreme torsional loads of Chevy Big Block (BBC) engines. Featuring a secondary 1/4-inch keyway for enhanced crankshaft security, this one-piece damper provides unmatched vibration control and strength for high-horsepower, boosted, or nitrous-fed applications. Its engineered for professional engine builders who demand reliability under maximum stress.
Constructed from billet steel and SFI 18.1 certified, the ATI917062K is designed to protect your crankshaft, bearings, and rotating assembly from destructive harmonics while maintaining perfect balance across the entire RPM range. Its large 8.074 diameter delivers superior damping efficiency, making it ideal for competition engines or big cubic-inch builds.
Performance Highlights
- Dual Keyway Design: Features an additional 1/4" keyway for maximum crankshaft security under extreme torque.
- 8.074 Outer Diameter: Provides enhanced damping capacity for high-RPM and high-power BBC engines.
- 3-Ring Inertia Assembly: Controls a broad spectrum of crankshaft harmonics for smooth, balanced performance.
- All-Steel, 1-Piece Construction: Precision-machined for unbeatable strength and long-term reliability.
- SFI 18.1 Certified: Approved for all major racing organizations and professional competition.
Quick Specs
- Part Number: ATI917062K
- Application: Chevy Big Block Engines
- Diameter: 8.074 in.
- Construction: 1-Piece Forged Steel
- Inertia Assembly: 3-Ring Design
- Keyways: Dual (Includes 2nd 1/4 Key)
- Material: Billet Steel
- Finish: Black Zinc Coating
- Safety Rating: SFI 18.1 Certified
- Compatibility: ATI Super Damper Systems
Install Note: Ideal for high-RPM, forced-induction, or nitrous-assisted BBC builds requiring dual keyways for enhanced crankshaft stability and damper retention.
Why Choose the ATI Super Damper 917062K?
The ATI 917062K Super Damper offers maximum vibration damping performance and extra security for high-torque Chevy Big Block engines. Its dual keyway design prevents slippage under extreme power, while the 8.074 diameter enhances harmonic absorption and balance. This damper is a proven choice for drag racers, engine builders, and serious street performance enthusiasts who demand absolute reliability from their powerplant.
FAQs
Q: What makes this damper different from the standard ATI917062?
A: The ATI917062K includes a second 1/4 keyway for additional crankshaft security, making it ideal for extreme performance or boosted engines.
Q: Is it SFI approved for competition?
A: Yes. The ATI917062K is fully SFI 18.1 certified and legal for NHRA, IHRA, and other sanctioned racing events.
Q: What kind of builds benefit from this model?
A: Any Big Block Chevy engine producing high torque or running forced induction, nitrous, or heavy competition use.
Vehicle Fitment
- Chevy Big Block Engines (396, 427, 454, 502, 572)
- Common Applications: Camaro, Chevelle, Nova, Corvette, Impala, and Custom BBC Race Builds
About Beefcake Racing
Beefcake Racing is your trusted source for Chevy Big Block performance and ATI Super Damper parts, offering expert guidance and unbeatable pricing. Whether you're upgrading your street car or building a full competition BBC, our team helps you get it right the first time. Contact us today at sales@beefcakeracing.com or call 1-855-827-7223 for personalized advice from true gearheads.
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