ATI Damper 7.074in Steel External Balance (Chevy Big Block 454 / 502 Chrysler Front w/ Supercharger 6-Bolt 2nd 1/4 Key) ATI917741E
High-Strength Steel Super Damper for Chevy Big Block 454 / 502 with Chrysler Front & Supercharger Setup
The ATI 7.074-inch Steel Super Damper (part ATI917741E) is designed for Chevy Big Block 454 and 502 engines using a Chrysler front accessory drive and supercharger configuration. This externally balanced damper features a 6-bolt pattern and a secondary 1/4-inch keyway for high-power forced-induction applications. Built from premium steel and engineered for precision, it provides superior torsional control, smoother crank operation, and long-term reliability under extreme loads.
Performance Highlights
- 7.074-inch outer diameter offers excellent harmonic absorption at high RPM
- External balance design for 454 and 502 Chevy Big Block engines
- Chrysler front drive configuration for hybrid and blower-drive setups
- 6-bolt mounting pattern with second 1/4-inch keyway for added crankshaft security
- SFI 18.1 certified and fully rebuildable for racing and performance use
Quick Specs
- Outer Diameter: 7.074 inches
- Material: Steel
- Balance Type: External
- Front Configuration: Chrysler Front
- Crank Type: Chevy Big Block 454 / 502
- Supercharger Compatibility: Yes
- Bolt Pattern: 6-Bolt
- Keyway: Dual (Standard + 1/4-Inch Secondary)
- Certification: SFI 18.1
- Part Number: ATI917741E
Why Choose ATIs 7.074in External Balance Super Damper?
The ATI917741E is purpose-built for high-output Big Block Chevy engines running a supercharger or custom hybrid front drive. Its external balance design and dual keyway hub ensure exceptional durability under boosted conditions. With a Chrysler-style front, this damper supports custom accessory or blower-drive setups while maintaining ATIs world-class vibration control. Its the go-to choice for serious racers and engine builders demanding reliability at extreme power levels.
Frequently Asked Questions
What does external balance mean?
External balance dampers rely on an offset counterweight to balance the engines rotating assembly, as used in 454 and 502 Big Block Chevy engines.
Why use a Chrysler front on a Chevy engine?
This setup is common in custom and blower-drive applications where the Chrysler front simplifies pulley and belt alignment for superchargers.
What is the purpose of the second 1/4-inch keyway?
The secondary keyway prevents hub rotation under extreme torque or boost, providing added security in high-horsepower builds.
Is this damper suitable for racing?
Yes. Its SFI 18.1 certified for competitive use and fully rebuildable to maintain peak performance season after season.
Vehicle Fitment
- Chevy Big Block 454 with Chrysler Front Drive & Supercharger
- Chevy Big Block 502 with Chrysler Front Drive & Supercharger
Contact Beefcake Racing
Beefcake Racing is your trusted source for ATI Super Dampers and high-performance engine components. For expert assistance or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our performance specialists can help you find the right damper for your supercharged Big Block build.
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