ATI Damper 7.074in Steel 6 Bolt 24T HTD 3 Ring 2nd 1/4 Key (Chevy Big Block w/ Chrysler Front w/ Supercharger) ATI918874E
High-Strength Supercharger Drive Damper for Big Block Chevy with Chrysler Front
The ATI 7.074-inch Steel Super Damper (part ATI918874E) is purpose-built for Chevy Big Block engines using a Chrysler-style front drive and supercharger setup. Featuring a 6-bolt hub, 24-tooth HTD drive pulley, and a 2nd 1/4-inch keyway, this damper provides bulletproof crankshaft engagement under extreme torque and boost conditions. Its 3-ring steel construction ensures maximum harmonic control and long-term durability in high-RPM race engines. Engineered for high-output forced-induction builds, this damper is SFI 18.1 certified and fully rebuildable for years of reliable, repeatable performance.
Performance Highlights
- 7.074-inch diameter delivers superior vibration damping for high-horsepower engines
- 24T HTD blower drive for positive belt engagement on supercharged setups
- 6-bolt hub with 2nd 1/4-inch keyway ensures rock-solid crankshaft locking
- 3-ring steel construction offers unmatched strength under extreme load
- Designed for Chevy Big Block engines with Chrysler-style front drives and blowers
- SFI 18.1 certified for competition-approved safety and performance
- Fully rebuildable for long-term service and precise harmonic control
Quick Specs
- Outer Diameter: 7.074 inches
- Material: Steel
- Design: 3 Ring
- Hub Type: 6-Bolt, Dual Key (2nd 1/4 Key)
- Drive Type: 24T HTD Supercharger
- Engine Compatibility: Chevy Big Block w/ Chrysler Front
- Certification: SFI 18.1
- Part Number: ATI918874E
Why Choose ATIs 24T HTD Super Damper?
The ATI918874E Super Damper delivers the ultimate in strength and stability for supercharged Big Block Chevy engines using Chrysler-style front assemblies. The 24T HTD pulley provides a secure, positive drive for high-boost blower systems, while the dual-key configuration prevents crankshaft movement even under the harshest conditions. ATIs proven 3-ring steel construction eliminates destructive harmonics and improves engine longevity. Perfect for drag racing, marine, or heavy-duty boosted builds, this damper is designed to handle serious power with absolute reliability.
Frequently Asked Questions
What does the 24T HTD drive mean?
The 24-tooth HTD drive provides a positive, high-grip connection between the crankshaft and supercharger belt system, ensuring zero slip under boost.
Why is the 2nd 1/4-inch keyway important?
The dual-key design increases hub engagement strength, preventing movement or shear in high-torque, high-boost engines.
Is this damper compatible with blower drive systems?
Yes. Its specifically engineered for supercharged Big Block Chevy engines with Chrysler-style front blower drives.
Can the damper be rebuilt?
Yes. Like all ATI Super Dampers, the ATI918874E is fully rebuildable to maintain accuracy and long-term reliability.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for ATI Super Dampers and high-performance engine components. We offer expert tech support, fast shipping, and competitive pricing across the full ATI lineup. For assistance selecting the right damper for your supercharged Big Block setup, contact us at sales@beefcakeracing.com or call 1-855-827-7223. Our experienced performance specialists are ready to help you build with confidence.
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